BMW Engine Parts for BMW 3 Series E46 (1999-2005)

Clear BMW chassis

Please ensure your correct model is selected

Turner Motorsport has everything you need to upgrade your BMW through our stages of performance or to keep your car in peak condition with our range of the latest in proven OEM cooling parts. Upgrade your cooling system and engine performance with the selections below to give your BMW a performance and reliability advantage.

Sub-Categories

Sort By:

Timing Chain Kit - M50/M52/M54
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:5512212
Part#: 11311703717KT
In Stock
Sale - Save 42% $ 109.99

This product was last offered at the strikethrough price on
05-28-2026

$ 64.32 USD
Free Shipping
Sale - Save 42%
$ 109.99

This product was last offered at the strikethrough price on
05-28-2026

$ 64.32 USD
Free Shipping
Timing Chain Kit for the BMW M50/M52/M54 engines composed of quality parts by Bremmen Parts! Kit Contents: Lower Timing Chain Tensioner Timing Chain - Lower Lower Timing Chain Guide Rail Tensioner Piston
Show More Show Less
Valve Spring Removal & Installation Kit
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Schwaben - Corporate Logo
T#:589348
Part#: 029610SCH01A
In Stock
Sale - Save 20% $ 96.99

This product was last offered at the strikethrough price on
11-07-2026

$ 77.59 USD
Free Shipping
Sale - Save 20%
$ 96.99

This product was last offered at the strikethrough price on
11-07-2026

$ 77.59 USD
Free Shipping

Elevate your BMW maintenance with this comprehensive tool kit designed for valve and valve stem seal removal and replacement, all without the need to remove the head. This time-saving kit ensures efficiency and ease in the process, making it an essential for DIY enthusiasts and professionals alike. The universal fitment and a range of adapters guarantee versatility across various brands and motors, providing maximum utility.

  • Removes and replaces valves and valve stem seals without head removal
  • Time and effort-saving solution
  • Wide range of adapters for versatile use
  • Universal fitment for compatibility with different brands and motors
  • Essential for DIY and professional use

Contents:

  • 1 - Lever Bar
  • 4 - Valve Spring Compressor Adapters
  • 1 - Slotted/Notched Pulling Device
  • 1 - Hook Pulling Device
  • 1 - Connector for Valve Spring Adapters
  • 1 – Connector for Pulling Device
  • 1 - Extension for Valve Spring Adapters
Show More Show Less
S54 Valve Adjustment Shim Set - With Tools
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:401664
Part#: VSK4KT2
In Stock
Sale - Save 15% $ 148.29

This product was last offered at the strikethrough price on
11-07-2026

$ 126.05 USD
Free Shipping
Sale - Save 15%
$ 148.29

This product was last offered at the strikethrough price on
11-07-2026

$ 126.05 USD
Free Shipping

Proper valve lash adjustment is critical for longevity and performance. If your S54 is due for valve adjustment maintenance you can do it yourself with this kit, saving hundreds of dollars in labor charges. 

Includes

  • Shim set 
  • Installation tool #83300493743
  • 16 Blade Feeler gauge set 

BMW recommends S54 valve inspection and adjustment every 30k miles.

*Click here for valve adjustment instructions*

Show More Show Less

Schwaben Camshaft Timing Tool - M50 M52 S50 S52 M42 M44
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Schwaben - Corporate Logo
T#:378974
Part#: 003304SCH01A
In Stock
Sale - Save 15% $ 119.99

This product was last offered at the strikethrough price on
11-07-2026

$ 101.99 USD
Free Shipping
Sale - Save 15%
$ 119.99

This product was last offered at the strikethrough price on
11-07-2026

$ 101.99 USD
Free Shipping

If you have ever attempted to do a valve job or cylinder head gasket project on an M42, M44, M50, or M52 engine you know that the repair manual will refer to the special BMW timing tool kit. This tool kit includes a flywheel locating lock pin, and a special set of camshaft locators that lock the cams in a precise location. The tools are very easy to install. The kit is specifically designed to hold the engine and cams in proper timing during the cylinder head removal and re installation process. This avoids the chance of bending the valves doing the head install process. The precision ground holding blocks lock over the square ends of both intake and exhaust cams. The CNC machined flywheel locating pin passes through a hole in the rear of the engine block and passed through a machined hole in the flywheel.

To avoid improper cam timing on the latest BMW engines, the factory has devised a cam timing system that locks the crankshaft and cams into a specific position prior to cylinder head removal. This method was devised to avoid any misalignment, resulting in piston to valve damage. Unfortunately without these tools re-timing the camshafts after a valve job is almost impossible. The factory specification manual does not supply installation specifications. This cam timing kit includes all the necessary components to do the job.

This item fits the following BMWs:
1990-1991 E30 BMW 318i 318is 318ic
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi


NOTE: Not compatible with S50B30 and S50B32 Euro engines!If you have ever attempted to do a valve job or cylinder head gasket project on an M42, M44, M50, or M52 engine you know that the repair manual will refer to the special BMW timing tool kit. This tool kit includes a flywheel locating lock pin, and a special set of camshaft locators that lock the cams in a precise location. The tools are very easy to install. The kit is specifically designed to hold the engine and cams in proper timing during the cylinder head removal and re installation process. This avoids the chance of bending the valves doing the head install process. The precision ground holding blocks lock over the square ends of both intake and exhaust cams. The CNC machined flywheel locating pin passes through a hole in the rear of the engine block and passed through a machined hole in the flywheel.

 

Show More Show Less

High-Performance Ignition Service Kit - BMW M54, (Early Models) M52 ...
For vehicles with production date up to 09/2002
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:583538
Part#: M54PISKT
In Stock
Sale - Save 30% $ 243.99

This product was last offered at the strikethrough price on
11-07-2026

$ 170.35 USD
Free Shipping
Sale - Save 30%
$ 243.99

This product was last offered at the strikethrough price on
11-07-2026

$ 170.35 USD
Free Shipping

Every 60-80,000 miles, we recommend replacing your spark plugs to ensure your ignition system is running optimally. Over time carbon can build up around the head of the spark plug and decrease spark strength and effectiveness, leading to weaker fuel mixture detonation, misfires, and potential check engine lights. To prevent this, have put together our High-Performance Ignition Service Kits. These kits include new Bav Auto High-Performance Ignition Coils, new spark plugs, dielectric grease, and a BMW spark plug service label to keep track of when your spark plugs were replaced.

Bav Auto's Ignition coils feature core windings that have been modified to increase firepower and promote a faster, more efficient burn. This gives your BMW/MINI increased torque in the lower range of RPM and more horsepower in the upper range. Exact improvements depend on the current condition of your engine, but you'll definitely feel the difference. They'll also improve your fuel economy.

From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Show More Show Less
Comprehensive Constant Pressure Valve Replacement Kit
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:557341
Part#: 11111318185TMSKT
In Stock
Sale - Save 5% $ 86.93

This product was last offered at the strikethrough price on
11-07-2026

$ 82.58 USD
Free Shipping
Sale - Save 5%
$ 86.93

This product was last offered at the strikethrough price on
11-07-2026

$ 82.58 USD
Free Shipping

When your CPV O-ring fails it causes a slow oil leak on the passenger side of the engine, making an oily mess that frequently resembles a rear main seal leak. Replacing the CPV with an upgraded o-ring ensures a long-term solution to this common problem. 

The factory o-ring over time fails from heat cycling and oil exposure due to the Buna rubber used in OEM o-rings, while the included Viton Fluoroelastomer is resistant to a much higher temperature to ensure prolonged life without leaking. 

Show More Show Less

E46 M3 / MZ4 Rod Bearing Overhaul Kit
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:392550
Part#: S54RBPDK
In Stock
$ 455.99

This product was last offered at the strikethrough price on
08-26-2026

Starting at $ 453.97 USD
Free Shipping
Starting at $ 453.97 USD
Free Shipping
Replacing the rod bearings requires mechanical knowledge and skill, a clean workspace, and several specialist tools. Our preferred procedure is to leave the engine in the car but remove the front subframe. The engine must be supported from above with an engine brace. Removing the front subframe involves disconnecting the control arms and steering rack and steering column. The oil pan can then be removed and you can access the connecting rods and bearings. Replacing the rod bearings themselves is straightforward but patience and forethought will be extremely helpful. In addition to analyzing the severity of the rod bearing wear, the crankshaft must also be inspected closely for damage. Rod bearings that have been severely worn may have damaged the crankshaft (requiring replacement or machining).
Show More Show Less
3/8" Drive 45-Tooth Digital Torque Wrench
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Schwaben - Corporate Logo
T#:396470
Part#: 023382SCH01A
In Stock
Sale - Save 15% $ 163.99

This product was last offered at the strikethrough price on
11-07-2026

$ 139.39 USD
Free Shipping
Sale - Save 15%
$ 163.99

This product was last offered at the strikethrough price on
11-07-2026

$ 139.39 USD
Free Shipping
Discover precision tailored to BMW and MINI enthusiasts with the Schwaben 3/8" Drive Digital Torque Wrench – a fusion of precision, convenience, and lasting quality that defines your enthusiast spirit. Elevate your car maintenance with the convenience of digital precision, backed by our LIFETIME REPLACEMENT program that underscores our commitment to quality. Features: Precision Perfected: This torque wrench merges micro-adjustable excellence with a digital display of torque units, guaranteeing accuracy that aligns with professional standards. Easy to Read: This wrench's digital screen allows for a quick glance to suffice when checking your torque so you don't have to search for it! Versatile Control: The reversible 3/8" drive 45-tooth head, coupled with a push-button release, empowers you with effortless operation. Tailored Torque: With a range of 15-80 ft-lbs and 20-110 N-m, it's engineered to excel across various applications. Unit Variety: Read torque effortlessly in your preferred metrics: ft-lbs, N-m, Inch-lbs, cm-kg2, and m-kg. Designed for Comfort: Its ergonomic 16" (370mm) length ensures comfortable handling, precision, and control. Unwavering Accuracy: With a remarkable accuracy within +- 3%, every task becomes a statement of confidence. On-the-Go Ready: Housed in a user-friendly blow-molded case, this torque wrench is primed for storage and mobility. Continuous Power: The included 3V CR2032 battery ensures seamless operation, offering you uninterrupted convenience.
Show More Show Less

Complete S54 Camshaft Alignment Tool Set
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Schwaben - Corporate Logo
T#:395239
Part#: 020929SCH01A
In Stock
Sale - Save 20% $ 326.99

This product was last offered at the strikethrough price on
11-07-2026

$ 261.59 USD
Free Shipping
Sale - Save 20%
$ 326.99

This product was last offered at the strikethrough price on
11-07-2026

$ 261.59 USD
Free Shipping

This gauge ensures that the inlet and exhaust cams are aligned perfectly. Make sure the edges are on the correct sides of the cylinder head before using.

Includes two alignment pin's which is ideal for inspection and servicing the motor with the timing chain still attached. If you are going to be removing the timing chain for service, you will need to lock both cams. 

The Ultimate kit includes every thing the standard kit does along with, a second alignment bridge, flywheel lock pin, VANOS alignment tools. and 4 bolt crank socket.

This tool fits all S54 powered BMW, including: 
2001-2006 E46 BMW M3
2001-2002 E36/7 BMW Z3M Coupe Z3M Roadster
2006-2008 E85/6 BMW Z4M Coupe Z4M Roadster
 

Show More Show Less

High-Performance Ignition Service Kit - BMW E46 Z3/Z4 S54 3.2L ...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:583532
Part#: S54PISKT
In Stock
Sale - Save 25% $ 297.99

This product was last offered at the strikethrough price on
11-07-2026

$ 223.02 USD
Free Shipping
Sale - Save 25%
$ 297.99

This product was last offered at the strikethrough price on
11-07-2026

$ 223.02 USD
Free Shipping

Every 60-80,000 miles, we recommend replacing your spark plugs to ensure your ignition system is running optimally. Over time carbon can build up around the head of the spark plug and decrease spark strength and effectiveness, leading to weaker fuel mixture detonation, misfires, and potential check engine lights. To prevent this, have put together our High-Performance Ignition Service Kits. These kits include new Bav Auto High-Performance Ignition Coils, new spark plugs, dielectric grease, and a BMW spark plug service label to keep track of when your spark plugs were replaced.

Bav Auto's Ignition coils feature core windings that have been modified to increase firepower and promote a faster, more efficient burn. This gives your BMW/MINI increased torque in the lower range of RPM and more horsepower in the upper range. Exact improvements depend on the current condition of your engine, but you'll definitely feel the difference. They'll also improve your fuel economy.

From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Show More Show Less
S54 Valve Adjustment Kit - With gaskets
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:582218
Part#: 83300493743
In Stock
Sale - Save 10% $ 255.18

This product was last offered at the strikethrough price on
11-07-2026

$ 229.66 USD
Free Shipping
Sale - Save 10%
$ 255.18

This product was last offered at the strikethrough price on
11-07-2026

$ 229.66 USD
Free Shipping
BMW recommends valve adjustments every 30k miles on your S54-equipped BMW. We have all the parts you will need to do the job in one discounted package for your BMW E46 M3, Z3, or Z4! Kit includes: 11127832034 x 1 - Valve Cover Gasket 11127831271 x 6 - Spark Plug Hole Gasket 11121437395 x 2 - Valve Cover Seal Washer Grommet 11127830972 x 13 - Valve Cover Nut Grommet VSK4 Wiseco x 1 - Valve Shim Set 83300493743 x 1 - Valve Shim Tool *Click here for valve adjustment instructions* This item fits the following BMWs: 2001-2006 E46 BMW M3, M3 Convertible2001-2002 Z3 BMW M Roadster M Coupe2006-2008 Z4 BMW Z4 M Roadster M Coupe
Show More Show Less
S54 Valve Adjustment Kit w/ Wiseco Shims - E46 M3, Z3M, Z4M
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:582210
Part#: S54WVALVESHIMKT
Ships in 1 Business Day
Sale - Save 10% $ 227.40

This product was last offered at the strikethrough price on
11-07-2026

$ 204.66 USD
Free Shipping
Sale - Save 10%
$ 227.40

This product was last offered at the strikethrough price on
11-07-2026

$ 204.66 USD
Free Shipping


OEM Ignition Service Kit - E46 M3
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:556737
Part#: E46M3TISKT
In Stock
Sale - Save 5% $ 327.99

This product was last offered at the strikethrough price on
11-07-2026

$ 310.99 USD
Free Shipping
Sale - Save 5%
$ 327.99

This product was last offered at the strikethrough price on
11-07-2026

$ 310.99 USD
Free Shipping

Often an oversight in maintenance, ignition components are also susceptible to wear and tear. Spark Plugs can accumulate carbon, reducing the spark intensity and it's ability to properly ignite the air/fuel mixture, leading to misfires and generally declining performance. Other ignition components, such as coils, boots, wires, caps, and rotors, can also wear out over time due to factors like heat and contamination, preventing the current from reaching the spark plug.

To start over fresh with all new components, we now offer these Ignition Service Kits. Each kit comes with brand new OE quality components, replacing any potential fault points in your ignition system for peak performance!

See kit contents below for a complete list of included components.

Show More Show Less
URO PCV Breather Hose Kit - E39, E46, E83
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
URO - Corporate Logo
T#:592719
Part#: BMM54PCVKIT
In Stock
$ 117.99 USD
Free Shipping
$ 117.99 USD
Free Shipping
Comes with everything needed to refresh the PCV System!
Pierburg - Corporate Logo
T#:373956
Part#: 13531404089
In Stock
$ 68.99

This product was last offered at the strikethrough price on
10-17-2026

$ 67.99 USD
Free Shipping
$ 67.99 USD
Free Shipping
Getting too much or to little fuel? Replace the fuel regulator.

DSC Pressure Sensor
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
URO - Corporate Logo
T#:567281
Part#: 34521164458
In Stock
$ 152.99 USD
Free Shipping
$ 152.99 USD
Free Shipping
This sensor is attached to the brake master cylinder

High-Performance Ignition Service Kit - BMW M54 (Late Models) ...
For vehicles with production date from 09/2002
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:583540
Part#: M54PISKT1
In Stock
Sale - Save 30% $ 243.99

This product was last offered at the strikethrough price on
11-07-2026

$ 170.35 USD
Free Shipping
Sale - Save 30%
$ 243.99

This product was last offered at the strikethrough price on
11-07-2026

$ 170.35 USD
Free Shipping

Every 60-80,000 miles, we recommend replacing your spark plugs to ensure your ignition system is running optimally. Over time carbon can build up around the head of the spark plug and decrease spark strength and effectiveness, leading to weaker fuel mixture detonation, misfires, and potential check engine lights. To prevent this, have put together our High-Performance Ignition Service Kits. These kits include new Bav Auto High-Performance Ignition Coils, new spark plugs, dielectric grease, and a BMW spark plug service label to keep track of when your spark plugs were replaced.

Bav Auto's Ignition coils feature core windings that have been modified to increase firepower and promote a faster, more efficient burn. This gives your BMW/MINI increased torque in the lower range of RPM and more horsepower in the upper range. Exact improvements depend on the current condition of your engine, but you'll definitely feel the difference. They'll also improve your fuel economy.

From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Show More Show Less
Accessory Belt Service Kit - E39 E46 M54 (2002+)
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:401685
Part#: 11287512762KT3
Ships on Jan 11, 2027
Sale - Save 25% $ 228.99

This product was last offered at the strikethrough price on
06-23-2026

$ 172.00 USD
Free Shipping
Sale - Save 25%
$ 228.99

This product was last offered at the strikethrough price on
06-23-2026

$ 172.00 USD
Free Shipping
This kit covers many of the common wear items that should be changed any time the serpentine belt is being replaced. As these cars gain years and mileage the belt tensioners will also need to be replaced along with the actual belts. It won't do any good to replace the belt if the tensioners are worn. This kit will save you time and money over buying these pieces individually. This kit includes an updated hydraulic alternator tensioner for added reliability and longevity.
Show More Show Less

Pierburg - Corporate Logo
T#:588161
Part#: 11417501568
In Stock
$ 510.99 USD
Free Shipping
$ 510.99 USD
Free Shipping

Turner Motorsport presents the solution to low oil pressure, increased oil operating temperature, or unusual lifter ticking in your BMW. If your car's sensor triggers a warning light due to pressure issues, it's time to consider the Turner Motorsport Oil Pump replacement. Proper maintenance of the oil pump is crucial for optimal engine function, emphasizing the need for regular oil changes every 3,000 to 5,000 miles. Damaged oil pumps can compromise your vehicle's performance, making replacement essential. When installing a new oil pump, don't forget to replace the oil suction pipe for comprehensive maintenance.

  • Improved Oil Pressure: Address low oil pressure concerns for enhanced engine performance.
  • Optimized Engine Temperature: Mitigate increased oil operating temperatures for better engine health.
  • Reduced Lifter Noise: Eliminate uncommon ticking sounds for a smoother ride.
  • Preventive Maintenance: Regular oil changes and pump replacement ensure prolonged engine life.
  • Comprehensive Kit: Turner Motorsport recommends replacing the oil suction pipe during the oil pump installation.

Ensure your BMW runs at its best by choosing Turner Motorsport's Oil Pump replacement.

Show More Show Less
Exhaust Camshaft Sensor - E46 E39 E38 E60 E63 E65 X3 X5 Z3 Z4 ...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:338260
Part#: 12147518628HK
In Stock
Starting at $ 79.98 USD
Free Shipping
Starting at $ 79.98 USD
Free Shipping
This is the exhaust cam position sensor for cars with M52, M54, N62 engines. Choose either Genuine BMW or Hella brand. Hella manufactures the highest quality parts and is an OEM supplier to BMW. Includes BMW part numbers 12147518628 and 12141748398. Replaces BMW part number 12141438082.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1999-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i 545i
2004-2005 E63 BMW 645ci
2002-2005 E65 BMW 745i 745li
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2004-2006 E53 BMW X5 4.4i 4.8i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2006 E85 BMW Z4 2.5i Z4 3.0i
Show More Show Less

S54 Constant Pressure Valve Replacement Kit
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:401625
Part#: 11111318185KT
In Stock
Sale - Save 5% $ 86.93

This product was last offered at the strikethrough price on
11-07-2026

$ 82.58 USD
Free Shipping
Sale - Save 5%
$ 86.93

This product was last offered at the strikethrough price on
11-07-2026

$ 82.58 USD
Free Shipping

When your CPV O-ring fails it causes a slow oil leak on the passenger side of the engine, making an oily mess that frequently resembles a rear main seal leak. Replacing the CPV with an upgraded o-ring ensures a long-term solution to this common problem. 

The factory o-ring over time fails from heat cycling and oil exposure due to the Buna rubber used in OEM o-rings, while the included Viton Fluoroelastomer is resistant to a much higher temperature to ensure prolonged life without leaking. 

Show More Show Less

1/2" Drive 45-Tooth Digital Torque Wrench
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Schwaben - Corporate Logo
T#:396471
Part#: 023380SCH01A
In Stock
Sale - Save 12% $ 190.99

This product was last offered at the strikethrough price on
11-07-2026

$ 168.29 USD
Free Shipping
Sale - Save 12%
$ 190.99

This product was last offered at the strikethrough price on
11-07-2026

$ 168.29 USD
Free Shipping

Looking to update your old torque wrenches? The Schwaben 3/8" Drive Digital Torque Wrench is your answer. 

This digital torque wrench uses an easy-to-read display to show torque amounts and settings, features a push button release, reversible 3/8" drive, 45 tooth ratchet head, and a comfortable no-slip grip and adjustment wheel.

Specifications:

  • Setting Range: 45-220 ft lbs (60-300 Nm)
  • Display Units: ft-lbs, N-m, Inch-lbs, cm-kg2, and m-kg
  • Size: 22" (550mm) length for easy leverage
  • Accuracy: +- 3%
  • Include blow molded holding case
  • Requires one 3V CR2030 battery (included)
Show More Show Less
S54 Ignition Service Kit
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:6196924
Part#: 12131712219TKT
In Stock
Sale - Save 3% $ 303.99

This product was last offered at the strikethrough price on
11-07-2026

$ 294.26 USD
Free Shipping
Sale - Save 3%
$ 303.99

This product was last offered at the strikethrough price on
11-07-2026

$ 294.26 USD
Free Shipping
Restore your ignition system using high quality Bosch ignition coils and NGK spark plugs. Your ignition system will start to fail with age, which will ruin your fuel economy as well as your performance. This Turner Motorsport kit includes new coils, plugs, and hardware. This particular kit utilizes all quality aftermarket components.
Show More Show Less
Turner Motorsport M50 Manifold Fuel Rail Cover
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:303995
Part#: TEN3680FRC
In Stock
$ 151.99 USD
Free Shipping
$ 151.99 USD
Free Shipping
Turner Motorsport has spent the last two decades striving for ultimate performance on the racetrack, and transferring the knowledge gained from winning races onto the street. Their line of BMW performance parts combines, high quality, great value, and most importantly, superior performance that will allow you to dial in your ride to suit your driving style and allow your BMW to live up to its full potential. This modified fuel rail cover will fit the M50 manifold, providing a completed look to your engine bay.
Show More Show Less


URO Fuel Pump Assembly - E46 Non-M
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
URO - Corporate Logo
T#:373294
Part#: 16146766942
In Stock
$ 115.99

This product was last offered at the strikethrough price on
11-07-2026

$ 102.99 USD
Limited Qty Sale
Free Shipping
$ 115.99

This product was last offered at the strikethrough price on
11-07-2026

$ 102.99 USD
Limited Qty Sale
Free Shipping

A failing fuel pump has many potential symptoms, including:

hard starting cold or after a heat soak
an illuminated check engine light
engine misfire under load or when cold
stalling
no-start.

Show More Show Less
OEM Ignition Service Kit - M54
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:556735
Part#: M54TISKT
In Stock
Sale - Save 5% $ 254.99

This product was last offered at the strikethrough price on
10-22-2026

$ 241.88 USD
Free Shipping
Sale - Save 5%
$ 254.99

This product was last offered at the strikethrough price on
10-22-2026

$ 241.88 USD
Free Shipping

Often an oversight in maintenance, ignition components are also susceptible to wear and tear. Spark Plugs can accumulate carbon, reducing the spark intensity and it's ability to properly ignite the air/fuel mixture, leading to misfires and generally declining performance. Other ignition components, such as coils, boots, wires, caps, and rotors, can also wear out over time due to factors like heat and contamination, preventing the current from reaching the spark plug.

To start over fresh with all new components, we now offer these Ignition Service Kits. Each kit comes with brand new OE quality components, replacing any potential fault points in your ignition system for peak performance!

See kit contents below for a complete list of included components.

Fits the following BMWs:
E46 BMW 325i/Ci/xi 330i/Ci/xi M54 (09/2002+)
E53 BMW X5 M54 (10/2002+)
E39 BMW 525i 530i M54 (09/2002+)
E83 BMW X3 M54

Show More Show Less
S54 Camshaft Installation Kit
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:599963
Part#: 1131783634KT1
In Stock
Sale - Save 3% $ 307.99

This product was last offered at the strikethrough price on
06-15-2026

$ 297.40 USD
Free Shipping
Sale - Save 3%
$ 307.99

This product was last offered at the strikethrough price on
06-15-2026

$ 297.40 USD
Free Shipping
Includes needed gaskets and hardware for installing a new camshaft set.

OEM Ignition Service Kit - M52 M54
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:556729
Part#: M5XTISKT
Ships in 1 Business Day
Sale - Save 5% $ 402.99

This product was last offered at the strikethrough price on
10-14-2026

$ 381.27 USD
Free Shipping
Sale - Save 5%
$ 402.99

This product was last offered at the strikethrough price on
10-14-2026

$ 381.27 USD
Free Shipping

Often an oversight in maintenance, ignition components are also susceptible to wear and tear. Spark Plugs can accumulate carbon, reducing the spark intensity and it's ability to properly ignite the air/fuel mixture, leading to misfires and generally declining performance. Other ignition components, such as coils, boots, wires, caps, and rotors, can also wear out over time due to factors like heat and contamination, preventing the current from reaching the spark plug.

To start over fresh with all new components, we now offer these Ignition Service Kits. Each kit comes with brand new OE quality components, replacing any potential fault points in your ignition system for peak performance!

See kit contents below for a complete list of included components.

Fits the following BMWs:
E36 BMW M52 2.5L 2.5L
E46 BMW M52, M54 (up to 09/2002)
E53 BMW X5 M54 (up to 10/2002)

Show More Show Less

Pierburg - Corporate Logo
T#:362211
Part#: 11727571589
In Stock
$ 358.99 USD
Free Shipping
$ 358.99 USD
Free Shipping

This secondary air pump helps to reduce emissions by mixing fresh air with the exhaust. When this part fails cause a engine fault code and it will trigger a "service engine soon" light. 

This item fits the following BMWs:
3/2003-2005 E46 BMW 325i 325ci 325xi 330i 330ci 330xi 
2004-2005 E60 BMW 525i 530i
2004-2010 E60 BMW 545i M5
2004-2011 E63 BMW 645ci M6
10/2003-2006 E53 BMW X5 3.0i
2004-2005 E83 BMW X3 3.0i

Show More Show Less
OEM Accessory Belt Service Kit - E39, E46 M54 (up to 2002)
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:401686
Part#: 11281748131KT2
Ships on Jan 11, 2027
Sale - Save 31% $ 272.99

This product was last offered at the strikethrough price on
06-23-2026

$ 188.63 USD
Free Shipping
Sale - Save 31%
$ 272.99

This product was last offered at the strikethrough price on
06-23-2026

$ 188.63 USD
Free Shipping
This kit covers many of the common wear items that should be changed any time the serpentine belt is being replaced. As these cars gain years and mileage the belt tensioners will also need to be replaced along with the actual belts. It won't do any good to replace the belt if the tensioners are worn. This kit will save you time and money over buying these pieces individually. This kit includes an updated hydraulic alternator tensioner for added reliability and longevity.
Show More Show Less

Pierburg Air Pump Control Valve (EGR) - E46, E83
For vehicles with production date from 03/2003
Pierburg - Corporate Logo
T#:19278
Part#: 11727553066
Special Order: No Guaranteed ETA
$ 105.99 USD
Free Shipping
$ 105.99 USD
Free Shipping
OEM BMW ENGINE VALVE
OEM Accessory Belt Service Kit - E46 E39 E53 M54 (Pre-09/2002) ...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:554446
Part#: M54ACCKT2
Ships on Jan 11, 2027
Sale - Save 32% $ 256.99

This product was last offered at the strikethrough price on
06-23-2026

$ 175.38 USD
Free Shipping
Sale - Save 32%
$ 256.99

This product was last offered at the strikethrough price on
06-23-2026

$ 175.38 USD
Free Shipping

Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

Fits the following BMWs:
2000-09/2002 E53 BMW X5 M54
2000-09/2002 E39 BMW M54
1999-09/2002 E46 BMW M54

Show More Show Less

OEM Ignition Service Kit - M52 S50/52
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:556710
Part#: M52S5XTISKT
In Stock
Sale - Save 10% $ 288.99

This product was last offered at the strikethrough price on
10-13-2026

$ 259.34 USD
Free Shipping
Sale - Save 10%
$ 288.99

This product was last offered at the strikethrough price on
10-13-2026

$ 259.34 USD
Free Shipping

Often an oversight in maintenance, ignition components are also susceptible to wear and tear. Spark Plugs can accumulate carbon, reducing the spark intensity and it's ability to properly ignite the air/fuel mixture, leading to misfires and generally declining performance. Other ignition components, such as coils, boots, wires, caps, and rotors, can also wear out over time due to factors like heat and contamination, preventing the current from reaching the spark plug.

To start over fresh with all new components, we now offer these Ignition Service Kits. Each kit comes with brand new OE quality components, replacing any potential fault points in your ignition system for peak performance!

See kit contents below for a complete list of included components.

Show More Show Less

"Cold Climate" Oil Separator Kit
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
URO - Corporate Logo
T#:377838
Part#: 11617534237
Ships in 1 Business Day
$ 74.99 USD
Free Shipping
$ 74.99 USD
Free Shipping
URO Parts is one of the leading manufacturers of high quality direct replacement aftermarket components, covering a wide range of makes and models. All of their replacement parts are manufactured to ISO 9000 certification standards, so you can expect long lasting performance from URO Parts.
Show More Show Less
Valve Cover
For vehicles with production date from 09/2002
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
URO - Corporate Logo
T#:559290
Part#: 11127512839
Ships in 1 Business Day
$ 263.99

This product was last offered at the strikethrough price on
08-13-2026

$ 256.99 USD
Free Shipping
$ 256.99 USD
Free Shipping
This complete valve cover assembly includes a sealing gasket and engine cover mounts.
Pierburg Secondary Air Pump - E46
For vehicles with production date up to 03/2003
Pierburg - Corporate Logo
T#:362210
Part#: 11727553056
Ships in 1 day
$ 328.99 USD
Free Shipping
$ 328.99 USD
Free Shipping
This secondary air pump fits BMW E46 323i 323ci 325i (m54) 325ci (m54) 325xi 328i 328ci 330i 330ci thru 2003, 330xi thru 2005. This part helps to reduce emissions by mixing fresh air with the exhaust. When this part fails cause a engine fault code and it will trigger a "service engine soon" light.

This item fits the following BMWs:
1999-2000  E46 BMW  323i 323ci 328i 328ci
2001-3/2003  E46 BMW  325i 325ci - only with M54 engine
2001-2005  E46 BMW  325ci Convertible 325xi
2001-3/2003  E46 BMW  330i 330ci
2001-2005  E46 BMW  330xi
Show More Show Less


S54 Valve Adjustment Kit - E46 M3, Z3M, Z4M
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:401675
Part#: S54VADJKT1
In Stock
Sale - Save 10% $ 416.35

This product was last offered at the strikethrough price on
11-07-2026

$ 374.72 USD
Free Shipping
Sale - Save 10%
$ 416.35

This product was last offered at the strikethrough price on
11-07-2026

$ 374.72 USD
Free Shipping

BMW recommends valve adjustment every 30,000 miles on the S54 engine.This valve adjustment kit includes every thing needed to to a proper valve adjustment on the S54 engine. 

Kit includes

  • Wiseco valve shims
  • Elring valve cover gasket set
  • BMW Valve shim Installation tool
  • Valve shim feeler gauge set 
  • Castrol TWS Edge Professional Engine Oil - 6 Quarts
  • Mann Oil Filter Kit
  • Oil pan drain plug 

Please note the the included feeler gauge set allows you to stack feeler blades to get a more precise adjustment 

*Click here for valve adjustment instructions*

This item fits the following BMWs: 
2001-2006 E46 BMW M3, M3 Convertible 
2001-2002 Z3 BMW M Roadster M Coupe 
2006-2008 Z4 BMW Z4 M Roadster M Coupe 

Show More Show Less
S54 Valve Adjustment Kit - E46 M3, Z3M, Z4M
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:5675
Part#: S54VALVESHIMKIT
Ships in 1-2 days
$ 1,256.41

This product was last offered at the strikethrough price on
10-05-2026

$ 1,255.51 USD
Free Shipping
$ 1,255.51 USD
Free Shipping

BMW recommends valve adjustments every 30k miles on your S54 equipped BMW. We have all the parts you will need to do the job in one discounted package. The kit includes all the Genuine BMW valve shims, valve shim tool, and all the gaskets and seals you will need.

Kit includes:
11127832034 x 1 - Valve Cover Gasket
11127831271 x 6 - Spark Plug Hole Gasket
11121437395 x 2 - Valve Cover Seal Washer Grommet
11127830972 x 13 - Valve Cover Nut Grommet
11340031525 x 1 - Valve Shim Set
83300493743 x 1 - Valve Shim Tool

*Click here for valve adjustment instructions*

This item fits the following BMWs:
2001-2006 E46 BMW M3, M3 Convertible2001-2002 Z3 BMW M Roadster M Coupe2006-2008 Z4 BMW Z4 M Roadster M Coupe

Show More Show Less
Timing Chain Kit - E46 M3 S54
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:1855991
Part#: 11411401399KT3
Ships in 1-2 days
$ 756.09

This product was last offered at the strikethrough price on
07-14-2026

$ 745.48 USD
Free Shipping
$ 745.48 USD
Free Shipping

Timing Chain Kit - E46 M3 S54
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:637982
Part#: 11411401399TMSKT
In Stock
$ 698.05

This product was last offered at the strikethrough price on
07-14-2026

$ 647.34 USD
Free Shipping
$ 647.34 USD
Free Shipping
This kit includes everything you need to service your timing chain system and prevent a potential timing failure, minus the oil - remember to add your favorite oil to your cart! Your S54 engine is an interference engine, meaning if the chain were to slip or fail, your engine will experience catastrophic damage. Replacing the timing chain and tensioners will ensure you everything is fresh and you won't have to worry about an unfortunate failure. This kit includes only the highest quality OEM components and features an IWIS timing chain. See kit contents tab for all included parts!
Show More Show Less

OEM Accessory Belt Kit - E46 M3
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:554437
Part#: E46M3ACCKT
Ships in 1 Business Day
Sale - Save 25% $ 350.99

This product was last offered at the strikethrough price on
08-24-2026

$ 262.04 USD
Free Shipping
Sale - Save 25%
$ 350.99

This product was last offered at the strikethrough price on
08-24-2026

$ 262.04 USD
Free Shipping

Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

Fits the following BMWs:
2001-2006 E46 BMW M3

Show More Show Less
OEM Accessory Belt Service Kit - E46 E39 E53 M54 (09/2002+)
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:554445
Part#: M54ACCKT
Ships on Jan 11, 2027
Sale - Save 24% $ 249.99

This product was last offered at the strikethrough price on
06-23-2026

$ 191.17 USD
Free Shipping
Sale - Save 24%
$ 249.99

This product was last offered at the strikethrough price on
06-23-2026

$ 191.17 USD
Free Shipping

Over time, accessory belts begin to wear out and crack. This can lead to the belt slipping, squeaking, or even snapping. Replace your belts and tensioners on a regular basis to ensure you don't end up stranded on the side of the road with a dead battery or over heated engine due to a bit of simple overlooked maintenance. This kit includes all of the items that will need replaced such as the belts, tensioners, and hardware.

Fits the following BMWs:
09/2002-2006 E53 BMW X5 M54
09/2002-2003 E39 BMW M54
09/2002-2005 E46 BMW M54

Show More Show Less

E46 M3 Power Package - Shark Injector, Power Pulleys, & IAT Relocatio...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:393209
Part#: E46S54SIPULLEY
Ships on Jan 11, 2027
Sale - Save 23% $ 1,042.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 801.78 USD
Free Shipping
Sale - Save 23%
$ 1,042.99

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 801.78 USD
Free Shipping

Shark Injector Performance Software
The enthusiast's choice for over a decade, the Shark Injector's performance is only equaled by its own ease of install! Tune your ECU at the press of a button simply by plugging into the under-dash OBDII diagnostic port, there is no removal of your car's computer; no laptop or cables required. What does the Shark offer?

  • Excellent horsepower and torque gains - peak: 18whp/11wtq, max: 22whp/16wtq
  • Faster and smoother throttle response
  • Top speed limiter removed
  • Extremely easy to install/uninstall
  • Reversible and reusable
  • Elevated 8,250 RPM rev limiter
  • Compatible with 91 octane; 93 recommended

​Turner Motorsport Power Pulleys 
Underdrive Power Pulleys work to 'free up' horsepower. Any accessory that spins from the main drive belt is using up power. That's power that could otherwise be used to move the car. By giving some of that power back to the engine, you can make the car faster! We measured 10.7 whp at 6960 rpm and 8.1 lb-ft of torque at 5550 on a 1995 M3. Race pulleys deliver even more power. 

Another "no-downside" upgrade, we even include a new belt. Total install time for a 3-piece pulley set should be around 1.5 hours. We offer three options in pulleys:
1.) No alternator pulley included - for cars with big amps and powerful stereo systems that need the extra juice.
2.) Street Power Pulleys - our most popular option with no downside!
3.) Race Power Pulleys - delivering 15 "free" horsepower, this set underdrives the water pump, power steering pulley, and alternator for lower temps, less wear, and more power. Not for street use. 

 

 

Intake Air Temperature Relocation Kit
Looking to maximize your power gains? Add a Turner IAT Relocation to combat power-robbing heat soak - the only true plug-and-play solution available. Heat soak is a real plague on consistent power for a stock or tuned vehicle. Click here to read more about our IAT relocation kit.

 

This item fits the following BMWs:
2001-2006 E46 BMW M3

 

Show More Show Less
E46 330i/ci/xi 01-03 Stage 1 Turner Motorsport Performance Package ...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:2850
Part#: TMS2850
In Stock
Sale - Save 10% $ 825.26

This product was last offered at the strikethrough price on
06-09-2026

$ 744.80 USD
Free Shipping
Sale - Save 10%
$ 825.26

This product was last offered at the strikethrough price on
06-09-2026

$ 744.80 USD
Free Shipping
2001-2/2003 E46 330i/Ci, 2001-05 330Xi Stage 1 Performance Package
Peak Power Gain: +8hp / +10ft-lbs
Rev limit: 7000
Octane: 91 or higher

Our Stage 1 kit featuring a cold-air intake kit and matching performance software. The aFe intake is made with heat-blocking materials, reducing underhood temperatures and not contributing to heat soak of the air filter. aFe uses an oiled cotton air filter for maximum air flow and excellent filtration. The kit is supplied complete with heat shield, intake tube, sealing materials, hardware, and install instructions.

The software is tuned by BMW tuning whiz Jim Conforti and supplied with the Shark Injector. The Shark Injector is a do-it-yourself reflash tool that plugs into the OBD diagnostic plug in your dash. With the push of a button, it will copy your stock software and reflash your computer with the performance tune. You can set it back to stock at any time by following the same procedure.

Both of these items are packaged and work together. They provide a solid performance boost with a low upfront cost. For an excellent 'bang for the buck' upgrade, the software and intake are a great choice (TMS Underdrive Pulleys would also be on that list).

Related Upgrades: We are often asked what would complement our software and intake packages. Within any Stage, we recommend our Underdrive Power Pulley Kits. The Power Pulley Kit will under-drive the alternator, water pump, and power steering pump. Under-driving means each component is moving slower which requires less power. The saved horsepower is put back to the engine where it transfers to power at the wheels. Power gains are typically 10 horsepower at the wheels.

We also recommend upgrading the cat-back muffler for slightly more performance, lighter weight, and a more-aggressive sound. Our favorite E46 mufflers are the Supersprint, Borla, or Corsa exhausts. The Supersprint is the quietest and most like stock while the Corsa is the most aggressive (Borla being in the middle). You can expect a gain of 5whp with any of these exhausts.

2001-2/2003 E46 330i/Ci, 2001-05 330Xi Stage 1 Engine Upgrade Kit includes:
aFe Cold Air Intake (oiled cotton filter, heat shield, intake tube)
Shark Injector performance software

Applications:
2001-2/2003 E46 330i sedan, 330Ci coupe and convertible (check your driver's door pillar for production date data)
2001-2005 330Xi sedan
Show More Show Less

Turner Motorsport E46 M3 Power Pack - Stage 1
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:586777
Part#: E46M3PP1
In Stock
Sale - Save 5% $ 928.00

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 883.10 USD
Free Shipping
Sale - Save 5%
$ 928.00

This product was last offered at the strikethrough price on
11-07-2026

Starting at $ 883.10 USD
Free Shipping
The E46 M3 was one of the most versatile cars ever produced. Want a car that handles well, is comfortable, and is perfect for driving down twisting roads on the weekend? E46 M3. Or how about something you can take to weekend track days and enjoy without any major modifications? E46 M3. Maybe you want to go full race car? E46 M3! The reliability, power, and handling characteristics made this car a legend that is still highly sought after, not to mention how amazing this car looks. Whatever your needs may be, we have a number of Turner Power Packs designed to start building the M3 of your dreams. We offer everything from Stage 1 to Stage 4+, and even a Track Inspired Power Pack designed for the ultimate in performance needs! This stage 1 kit offers the following upgrades: aFe Performance Intake Kit Pro5r - Increase airflow volume to increase performance at all RPMs Shark Injector Performance Software - Tune your car for optimal performance, perfectly paired with any and all modifications
Show More Show Less

75A Motor And Transmission Mount Kit - E46 BMW
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:5389726
Part#: 11812283798TKT
Ships in 1-2 days
Sale - Save 27% $ 407.99

This product was last offered at the strikethrough price on
08-10-2026

$ 298.11 USD
Free Shipping
Sale - Save 27%
$ 407.99

This product was last offered at the strikethrough price on
08-10-2026

$ 298.11 USD
Free Shipping
M54 Complete Fuel Injector Set
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:5416770
Part#: 13537546245TMSKT
Back Ordered
Sale - Save 3% $ 873.99

This product was last offered at the strikethrough price on
11-07-2026

$ 847.39 USD
Free Shipping
Sale - Save 3%
$ 873.99

This product was last offered at the strikethrough price on
11-07-2026

$ 847.39 USD
Free Shipping
Includes new injector, fuel rail o-ring and injector holder. A vehicle with dirty injectors may host a wide variety of symptoms. From stalling, hesitation, misfiring, and a rough idle, to the wide open throttle woes. If your vehicle is suffering from these symptoms, the fuel injectors may be the cause.
Show More Show Less
Valve Cover
For vehicles with production date up to 09/2002
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
URO - Corporate Logo
T#:585280
Part#: 11121432928
In Stock
$ 238.99 USD
Free Shipping
$ 238.99 USD
Free Shipping
Maintain peak engine efficiency and a clean engine bay with this direct replacement plastic valve cover from URO Parts.


"Cold Climate" Crankcase Pressure Regulator Valve
Superior performance for both warm and cold climates
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes!
URO - Corporate Logo
T#:376770
Part#: 11617533400
Ships in 1 Business Day
$ 40.99 USD
Free Shipping
$ 40.99 USD
Free Shipping
Commonly referred to as the "oil separator" or PCV
E46 325i/325ci/325xi 01-06 Stage 1 Turner Motorsport Performance Pack...
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Packaged by Turner - Corporate Logo
T#:2849
Part#: TMS2849
Back Ordered
Sale - Save 5% $ 751.99

This product was last offered at the strikethrough price on
11-07-2026

$ 714.39 USD
Free Shipping
Sale - Save 5%
$ 751.99

This product was last offered at the strikethrough price on
11-07-2026

$ 714.39 USD
Free Shipping
2001-2006 E46 325i/Ci/Xi/iT (M54 engine) Stage 1 Performance Package
Peak Power Gain: +8hp / +8ft-lbs
Rev limit: 7000
Octane: 91 or higher

Our Stage 1 kit featuring a cold-air intake kit and matching performance software. The aFe intake is a cone filter with a heat-blocking shield around it. The larger surface area of the filter, combined with the heat shield, allow more cool air to enter the engine - creating more power and torque, a richer engine sound, and better throttle response. The kit is supplied complete with heat shield, intake tube, sealing materials, hardware, and install instructions.

The software is tuned by BMW tuning whiz Jim Conforti and supplied with the Shark Injector. The Shark Injector is a do-it-yourself reflash tool that plugs into the OBD diagnostic plug in your dash. With the push of a button, it will copy your stock software and reflash your computer with the performance tune. You can set it back to stock at any time by following the same procedure.

Both of these items are packaged and work together. They provide a solid performance boost with a low upfront cost. For an excellent 'bang for the buck' upgrade, the software and intake are a great choice (TMS Underdrive Pulleys would also be on that list).

Related Upgrades: We are often asked what would complement our software and intake packages. Within any Stage, we recommend our Underdrive Power Pulley Kits. The Power Pulley Kit will under-drive the alternator, water pump, and power steering pump. Under-driving means each component is moving slower which requires less power. The saved horsepower is put back to the engine where it transfers to power at the wheels. Power gains are typically 10 horsepower at the wheels.

We also recommend upgrading the cat-back muffler for slightly more performance, lighter weight, and a more-aggressive sound. Our favorite E46 mufflers are the Supersprint, Borla, or Corsa exhausts. The Supersprint is the quietest and most like stock while the Corsa is the most aggressive (Borla being in the middle). You can expect a gain of 5whp with any of these exhausts.

2001-2006 E46 325i/Ci/Xi/iT (M54 engine) Stage 1 Engine Upgrade includes:
aFe Cold Air Intake (filter, heat shield, intake tube)
Shark Injector performance software

Applications:
2001-2006 E46 325i sedan, 325Ci coupe and convertible, 325Xi sedan, 325iT wagon, 325XiT wagon ( M54 engine only).
Show More Show Less