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

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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.

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Mahle - Corporate Logo
T#:598529
Part#: 11251437077
In Stock
$ 38.99

This product was last offered at the strikethrough price on
10-27-2026

$ 34.99 USD
Free Shipping on orders $49 and up
$ 34.99 USD
Free Shipping on orders $49 and up

Ensure optimal engine performance in your BMW M50 M52 Engines with Turner Motorsport's Mahle Piston Ring Set. Over time, worn piston rings can lead to power loss, increased oil consumption, and white smoke from the tailpipe. When rebuilding your BMW's engine, replacing the piston rings is essential for restoring power and efficiency. Each set is priced individually, with six sets required for complete engine overhaul.

Key Benefits:

  • Restores engine power and efficiency
  • Reduces oil consumption
  • Prevents white smoke from the tailpipe
  • Compatible with M50 M52 Engines
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Glyco - Corporate Logo
T#:375825
Part#: 11241284849
Ships in 1 Business Day
$ 92.02

This product was last offered at the strikethrough price on
07-15-2026

$ 84.66 USD
Free Shipping on orders $49 and up
$ 84.66 USD
Free Shipping on orders $49 and up
Standard bore - 45mm
Rein - Corporate Logo
T#:370783
Part#: 11131437237
In Stock
$ 28.99 USD
Free Shipping on orders $49 and up
Metal / Rubber gasket

Precision Raceworks - Corporate Logo
T#:38161701
Part#: 101-0257
In Stock
$ 49.99 USD
Free Shipping on orders $49 and up

Replacement Fuel Filter Element - 6 Micron | Precision Raceworks is designed for BMW and high-performance fuel systems, ensuring optimal fuel flow and superior filtration. This high-efficiency 6-micron filter element effectively captures contaminants, preventing debris from reaching fuel injectors and maintaining peak engine performance.

Regular maintenance of your fuel filter is essential for maximizing fuel system efficiency. Whether for racing or daily driving, this replacement element keeps your fuel system running at its best.

  • 6-micron filtration – Removes fine particles and contaminants to protect engine components
  • High-performance compatibility – Designed for use with Precision Raceworks inline fuel filters
  • Optimized fuel flow – Maintains consistent fuel delivery for peak performance
  • Durable construction – Engineered for long-lasting reliability in high-demand applications
  • Easy replacement – Simple installation for routine maintenance
  • Ideal for both street and track use – Ensures clean fuel supply for all driving conditions

Fuel Filter Replacement Guidelines:

  • Racing applications: Inspect at least twice per season and replace as needed
  • Daily driving: Inspect at least once a year or every 6,000 miles, replacing as necessary

Ensure your BMW fuel system stays clean and efficient with the Replacement Fuel Filter Element - 6 Micron | Precision Raceworks, the ultimate choice for maintaining performance and reliability.

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Precision Raceworks - Corporate Logo
T#:38161736
Part#: 201-0405
In Stock
$ 24.99 USD
Free Shipping on orders $49 and up
This fitting allows you to install a 1/8" npt port anywhere you have an existing quick connect Compatible with the Motiv 0-10 Bar pressure sensor
Mahle - Corporate Logo
T#:403354
Part#: 13327831089
Ships in 1 Business Day
$ 84.05

This product was last offered at the strikethrough price on
10-27-2026

$ 76.26 USD
Free Shipping on orders $49 and up
$ 76.26 USD
Free Shipping on orders $49 and up

Ensure optimal fuel delivery for your BMW's engine with the Turner Motorsport Fuel Filter for E46 M3 & Z3 S54 3.2L Engine. Over time, fuel filters can become clogged, hindering the engine's ability to receive sufficient fuel. This can lead to various fuel-related issues such as surging, stalling, cold start problems, and decreased performance. Replacing the fuel filter with a fresh one helps address these issues and ensures smooth engine operation under various conditions.

Benefits:

  • Improves fuel delivery to the engine
  • Addresses fuel-related problems such as surging and stalling
  • Enhances cold start performance
  • Maintains engine performance under various driving conditions
  • Recommended replacement every 60,000 miles, or more frequently in regions with poor fuel quality
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Mahle - Corporate Logo
T#:367343
Part#: 13321740985
Ships in 1 Business Day
$ 46.05

This product was last offered at the strikethrough price on
07-02-2026

$ 35.28 USD
Free Shipping on orders $49 and up
$ 35.28 USD
Free Shipping on orders $49 and up

This is an OEM MAHLE fuel filter that removes dirt and other particle contaminants from your fuel.

A clogged fuel filter makes it difficult for your engine to get all the fueling it needs. Filters commonly clog from a deteriorating gas tank, bad fuel, or other debris in the fuel system. A fresh fuel filter addresses many fuel related problems including surging, stalling, cold start issues, and poor performance under a variety of conditions.

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Glyco - Corporate Logo
T#:375823
Part#: 11211706847
Ships Today
$ 136.06

This product was last offered at the strikethrough price on
07-15-2026

$ 125.73 USD
Free Shipping
$ 125.73 USD
Free Shipping
Standard bore

Rein - Corporate Logo
T#:379190
Part#: 11617504535K
Ships in 1 Business Day
$ 79.99 USD
Free Shipping
$ 79.99 USD
Free Shipping

Turner Motorsport presents the Crankcase Ventilation System Refresh Kit for BMW owners experiencing malfunctioning or aged CCV systems. This comprehensive kit includes all necessary hoses to complete a refresh, ensuring optimal performance and reliability for your BMW's CCV system.

  • Addresses malfunctioning CCV systems
  • Ensures proper ventilation of the crankcase
  • Comprehensive kit includes all necessary hoses
  • Restores performance and reliability
  • Compatible with various BMW models
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Precision Raceworks - Corporate Logo
T#:38195449
Part#: 501-0043
In Stock
$ 159.99 USD
Free Shipping on orders $49 and up
Adjust your fuel pressure as needed. Thanks to the 1:1 boost reference, fuel pressure will increase as boost pressure increases, ensuring fuel delivery remains optimal under all conditions.
Walbro - Corporate Logo
T#:23020149
Part#: F90000295
In Stock
$ 203.99 USD
Free Shipping on orders $49 and up

New DCSS 39/50 High-Performance Pump – F90000295

  • Highest flow in-tank brushed fuel pump offering from TI Automotive / Walbro
  • No Internal check valve - ideal for racing applications to build oil pressure prior to start-up
  • Featuring award-winning DCSS technology
  • E85 compatible
  • High-pressure relief setting - supports supercharger and turbo applications
  • Capable of supporting 900+HP at 60PSI naturally aspirated applications
  • Complete Pump and kit combination – TCD495

Fuel: GAS & E85

Horsepower: 900+ at 60PSI, naturally aspirated applications

Over All Pump Length: 131mm

Main Housing Diameter: 39mm

Lower Housing Diameter: 50mm

Fuel Inlet Diameter: 11mm OD

Fuel Outlet Diameter: 11mm OD

Flow Rate: 535LPH at 40psi

Test Voltage: 13.5 Volts

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Rein - Corporate Logo
T#:361056
Part#: 11142249533
In Stock at Vendor
$ 22.99 USD
Free Shipping on orders $49 and up
Rein Rear Crankshaft Seal for many BMW models is an OE-equivalent replacement for the rear main oil seal. When the seal fails, oil drips onto the driveway and can reach the clutch surface. Replacing it during a clutch job is the practical time to do it, since the transmission is already out.
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Rein - Corporate Logo
T#:591711
Part#: 11511436590
In Stock
$ 50.99

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

$ 46.99 USD
Free Shipping on orders $49 and up
$ 46.99 USD
Free Shipping on orders $49 and up
A common failing piece due to the plastic design.
Performance Tool - Corporate Logo
T#:1809130
Part#: W89409
Ships in 1 Business Day
$ 126.99 USD
Free Shipping
$ 126.99 USD
Free Shipping
For servicing overhead valve engine with cylinder head removed.
Performance Tool - Corporate Logo
T#:1809147
Part#: W5202
In Stock at Vendor
$ 21.99 USD
Free Shipping on orders $49 and up
Nitrile Butadiene Rubber

Precision Raceworks - Corporate Logo
T#:38161679
Part#: 201-0410
In Stock
$ 49.00 USD
Free Shipping on orders $49 and up
Ideal for enthusiasts looking to optimize their vehicle’s fuel system, this ethanol sensor harness delivers precision and reliability for high-performance applications.

Rein - Corporate Logo
T#:4471
Part#: 11361705532
Ships on Dec 1, 2026
$ 61.99

This product was last offered at the strikethrough price on
06-04-2026

$ 53.99 USD
Free Shipping on orders $49 and up
$ 53.99 USD
Free Shipping on orders $49 and up
This oil pipe hose runs from the VAN0S adjusting unit to the oil filter housing. At some point the rubber line shrinks or cracks and oil can weep out of the swedge fittings. The fittings at the banjo bolts can also leak so replacing the seals for each banjo fitting is strongly recommended.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
1996-1999 E36 BMW 323is 323ic 328i 328is 328ic M3 3.2
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1997-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 530i
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 Z4 BMW Z4 2.5i Z4 3.0i
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Rally Road - Corporate Logo
T#:28570819
Part#: B047-KIT
Ships on Dec 7, 2026
$ 209.99 USD
Free Shipping on orders $49 and up

Rein M52 M54 Upper Oil Separator Vent Tube (CCV) - 11617504535 - E46,...
For vehicles with production date from 01/2000
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:378292
Part#: 11617504535
In Stock
$ 22.99 USD
Free Shipping on orders $49 and up
$ 22.99 USD
Free Shipping on orders $49 and up
Runs from the top of the oil separator up to intake manifold.
Performance Tool - Corporate Logo
T#:2242226
Part#: W80533
Ships in 1 Business Day
$ 20.25 USD
Free Shipping on orders $49 and up
Extended socket length reaches confined areas.

Radium Engineering - Corporate Logo
T#:27905095
Part#: 20-0024
In Stock at Vendor
$ 28.99 USD
Free Shipping on orders $49 and up

Includes:

Anodized 4AN ORB Barbed Adapter Fitting, Black Ball Valve with 1/4" Barbs, 125psi @ 140F 4 feet of Radium 1/4" PCV Hose


Performance Tool - Corporate Logo
T#:2242223
Part#: W80573
Ships in 1 Business Day
$ 22.99 USD
Free Shipping on orders $49 and up
Use to install pistons on most passenger cars and truck engines
Precision Raceworks - Corporate Logo
T#:38094305
Part#: 601-0260
Ships on Dec 9, 2026
$ 64.99 USD
Free Shipping on orders $49 and up
For enthusiasts seeking to regulate fuel pressure at the engine without the complexities of manual adjustments or the need for a 1:1 boost reference, a preset fuel pressure regulator offers an ideal solution. These compact regulators are designed for straightforward installation and consistent performance.
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Precision Raceworks - Corporate Logo
T#:38161702
Part#: 101-0256
Ships in 9 Business Days
$ 49.99 USD
Free Shipping on orders $49 and up

Replacement Fuel Filter Element - 10 Micron | Precision Raceworks offers excellent filtration for BMW and high-performance fuel systems, ensuring that larger particles and contaminants are filtered out to maintain optimal engine function. This 10-micron replacement filter element is designed to work seamlessly with Precision Raceworks inline fuel filters, delivering superior protection to your fuel system components, including injectors and fuel pumps.

Whether you're racing on the track or using your vehicle for daily driving, this replacement fuel filter element keeps your fuel system performing at its best by providing reliable filtration and smooth fuel delivery.

  • 10-micron filtration – Effectively captures larger particles and contaminants to protect fuel system components
  • Maintains fuel flow – Supports smooth fuel delivery for consistent engine performance
  • Durable construction – Crafted with high-quality materials for long-lasting use under various conditions
  • Seamless integration – Direct replacement for Precision Raceworks inline fuel filters
  • Versatile use – Perfect for daily driving, street, and high-performance applications
  • Easy to replace – Simple maintenance to keep your fuel system clean and efficient

Fuel Filter Replacement Guidelines:

  • Racing applications: Inspect at least twice per season and replace as necessary
  • Daily driving: Inspect annually or every 6,000 miles, and replace as needed

Ensure your BMW’s fuel system stays in top shape with the Replacement Fuel Filter Element - 10 Micron | Precision Raceworks, designed to deliver consistent fuel flow and protect your high-performance engine.

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Precision Raceworks - Corporate Logo
T#:38094309
Part#: 201-0274
Ships in 5 Business Days
$ 24.99 USD
Free Shipping on orders $49 and up
The Precision Raceworks AN6 Male Flare/ORB to 5/16" (7.89mm) Female Quick Connect is a premium component designed for fluid or fuel systems. The AN6 male flare/ORB fitting ensures a secure connection, while the 5/16" (7.89mm) female quick-connect fitting allows for fast, tool-free disconnection and reconnection. This setup guarantees a reliable, leak-proof seal, ideal for high-performance systems. Would you like assistance sourcing this fitting or other Precision Raceworks components?
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Precision Raceworks - Corporate Logo
T#:35559424
Part#: 201-0411
In Stock
$ 34.99 USD
Free Shipping on orders $49 and up
n Ethanol Sensor Breakout Harness provides a clean wiring solution by splitting the signal from your ethanol content sensor between two analyzers, such as an ECU/controller and a gauge or Bluetooth display, without modifying your existing harness.his setup enables real-time ethanol level monitoring and facilitates comprehensive DME/ECU adjustments for enhanced automotive performance.citeturn0search0
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Precision Raceworks - Corporate Logo
T#:38094308
Part#: 601-0261
Ships in 9 Business Days
$ 64.99 USD
Free Shipping on orders $49 and up
For enthusiasts seeking to regulate fuel pressure at the engine without the complexities of manual adjustments or the need for a 1:1 boost reference, a preset fuel pressure regulator offers an ideal solution. These compact regulators are designed for straightforward installation and consistent performance.
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Sunex - Corporate Logo
T#:391150
Part#: SUU884506
In Stock
9% off MSRP $ 31.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 28.99 USD
Free Shipping on orders $49 and up
9% off MSRP
$ 31.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 28.99 USD
Free Shipping on orders $49 and up
3/8" drive socket with 5/8" opening for most spark plugs

Active Autowerke - Corporate Logo
T#:57616348
Part#: RTF-1L
Ships in 3 Business Days
New Item
7% off MSRP $ 140.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 130.00 USD
Free Shipping
7% off MSRP
$ 140.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 130.00 USD
Free Shipping
Rotrex superchargers utilize a unique traction drive system that sets it apart from other centrifugal-style superchargers. For best performance, Rotrex recommends replacing this fluid every 50,000 miles. This bottle of traction fluid is plenty enough for one supercharger service (typically 750ml).
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Rein - Corporate Logo
T#:599655
Part#: 11127512839
Ships in 3 Business Days
$ 399.99 USD
Free Shipping
$ 399.99 USD
Free Shipping

Glyco - Corporate Logo
T#:375824
Part#: 11211706850
In Stock at Vendor
$ 126.61

This product was last offered at the strikethrough price on
07-15-2026

$ 119.33 USD
Free Shipping
$ 119.33 USD
Free Shipping
59.75MM(+0.25) bore
Rein - Corporate Logo
T#:53750207
Part#: PKP0124
In Stock
New Item
$ 41.99 USD
Free Shipping on orders $49 and up
$ 41.99 USD
Free Shipping on orders $49 and up
Upgrade the Plastic Pulley in Your BMW with an All Aluminum Construction Replacement from Rein

Rein - Corporate Logo
T#:379819
Part#: 11251437077
Ships in 3 Business Days
$ 31.99 USD
Free Shipping on orders $49 and up
Standard bore replacement piston rings

Rein M52 M54 Valve Cover Kit - 11121432928 - E46, E39 525i 528i 530i,...
For vehicles with production date up to 09/2002
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:599656
Part#: 11121432928
In Stock
$ 233.99 USD
Free Shipping
$ 233.99 USD
Free Shipping
Eliminate oil and vacuum leaks with a brand new valve cover. This OEM Rein valve cover comes complete with sealing gaskets and engine cover mounts.
Active Autowerke - S54 Supercharger Kit (Level 1) - E46 M3 (Manual Tr...
For vehicles with 6 speed transmissions
For vehicles with 6 speed transmissions
Active Autowerke - Corporate Logo
T#:397296
Part#: 12-023
Ships in 10 Business Days
5% off MSRP $ 11,249.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 10,686.99 USD
Free Shipping
5% off MSRP
$ 11,249.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 10,686.99 USD
Free Shipping

Since getting their start in 1981, Active Autowerke has earned a well-respected reputation in the BMW community for engineering high-quality power solutions for popular BMW models. This supercharger kit will produce 525 horsepower and 335 ft.lbs. of torque on your BMW, while retaining platform integrity and daily driveability. Unique to the design of the Rotrex supercharger is the traction drive system, which eliminates the lag often found in other centrifugal supercharger setups. Power delivery is smooth and dependable, and 100% reversible to stock if you so choose, since each system is designed as a self-contained unit.

Kit features:

  • Rotrex 92 trim supercharger running 7 PSI of boost
  • Supercharger bracket, pulleys, & belt
  • Self-contained oiling system with front-mount oil cooler
  • 6 high-flow fuel injectors
  • Colder heat range spark plugs
  • Active Autowerke  Generation 7 intake manifold with dual bypass valve
  • Front mount air-to-air intercooler
  • Active Autowerke air filter
  • Active Autowerke dyno-tuned software
  • All mounting hardware, plumbing, hoses, & clamps
  • Illustrated instruction manual & installation guide
  • 2 year warranty with free tech support

Performance Specs:

  • Power   :   525 BHP @ 7650 rpm
  • Torque   :   335 ft/lbs @ 5400 rpm
  • Boost Level   :   7-8 psi
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Rein Vent Hose - 11157513756 - E46 325i 325Ci
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:594296
Part#: 11157513756
Ships in 3 Business Days
$ 35.75

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

$ 30.99 USD
Free Shipping on orders $49 and up
$ 30.99 USD
Free Shipping on orders $49 and up
Connects the intake manifold to the valve cover


Radium Engineering - Corporate Logo
T#:31059457
Part#: 20-1440
In Stock at Vendor
5% off MSRP $ 549.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 522.99 USD
Free Shipping
5% off MSRP
$ 549.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 522.99 USD
Free Shipping
Performance Tool - Corporate Logo
T#:2242222
Part#: W80572
Ships in 1 Business Day
$ 21.99 USD
Free Shipping on orders $49 and up
Use to install pistons on most passenger cars and truck engines
Radium Engineering - Corporate Logo
T#:577815
Part#: 20-0070-02
In Stock at Vendor
5% off MSRP $ 199.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 189.99 USD
Free Shipping
5% off MSRP
$ 199.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 189.99 USD
Free Shipping
Aluminum large bore fuel rail for feeding your engine no matter the power level. Fuel rail also allows use of external fuel pressure regulators, pressure gauges, and pulse dampers. Safe for all fuel types including E85.
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Glyco - Corporate Logo
T#:374671
Part#: 11211706848
Ships in 1 day
$ 194.32 USD
Free Shipping
$ 194.32 USD
Free Shipping
Standard bore

Rein - Corporate Logo
T#:552486
Part#: 11617533399
Ships in 1 day
$ 35.99 USD
Free Shipping on orders $49 and up
Runs from the top of the oil separator up to rear of the intake manifold.
Precision Raceworks - Corporate Logo
T#:38161705
Part#: 101-0258
In Stock
$ 49.99 USD
Free Shipping on orders $49 and up

The Replacement Fuel Filter Element - Dual Open 6 Micron | Precision Raceworks is designed for high-performance fuel systems, providing efficient filtration to protect vital components in your BMW. With a 6-micron filtration capability, this element ensures that harmful debris and contaminants are removed, safeguarding fuel pumps, injectors, and other critical parts from damage. Whether you're racing or daily driving, this filter helps maintain optimal fuel flow, ensuring consistent engine performance under all conditions.

This dual open design fits seamlessly into Precision Raceworks inline fuel filters, offering reliable and efficient performance for both street and track applications. Easy to replace and designed for maximum protection, this filter element helps keep your fuel system in top condition, ensuring long-lasting performance and reliability.

  • 6-micron filtration – Effectively removes harmful contaminants, improving fuel system longevity
  • Dual open design – Provides balanced flow and efficient filtration for superior fuel system protection
  • Precision-engineered – Custom fit for Precision Raceworks inline fuel filters, ensuring easy installation
  • Durable construction – Built with high-quality materials to withstand demanding driving conditions
  • Protects critical components – Safeguards fuel pumps, injectors, and more from debris and impurities
  • Simple maintenance – Quick and easy to replace, ensuring your system performs at its best
  • Versatile usage – Suitable for both high-performance racing and daily driving

Fuel Filter Replacement Guidelines:

  • Racing applications: Inspect twice per season and replace as needed to maintain peak performance
  • Daily driving: Inspect at least once per year or every 6,000 miles for preventative maintenance

The Replacement Fuel Filter Element - Dual Open 6 Micron | Precision Raceworks is an essential upgrade to keep your BMW’s fuel system running smoothly and protected from contaminants.

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Precision Raceworks - Corporate Logo
T#:38094344
Part#: 201-0177
Ships in 9 Business Days
$ 29.99 USD
Free Shipping on orders $49 and up
Perfect for upgrading or modifying your fuel delivery system, it offers effortless installation and long-lasting reliability in performance-driven builds
Rein Exhaust Valve - E34, E36, E39, E46, Z3
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379738
Part#: 11341739823
Ships on Dec 1, 2026
$ 20.99 USD
Free Shipping on orders $49 and up
Replacement exhaust valve

Rally Road - Corporate Logo
T#:401511
Part#: RROCCK
Ships on Dec 1, 2026
Starting at $ 243.99 USD
Free Shipping
Starting at $ 243.99 USD
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Rally Road Productions, Inc. is a team supported by a group of people with great abilities in their area of expertise. From the "web guy" and driving instructor friends, to owners of various machine shops, they have surrounded ourselves with people that can be trusted to create and manufacture quality products. This is the key to ensuring everything that they sell will perform as it was intended. The goal is to increase customer satisfaction and make the customization or performance enhancement of your vehicle a more enjoyable venture.

This oil cooler system is race tested and proven to outflow the euro M3 oil filter housing. Additionally, this particular system uses a sealing mechanism to direct the oil flow through the cooler lines and then through the oil filter.  Other cooler caps do not provide this seal and therefore the external oil coolers and lines act as a "balloon".  The lines and cooler are pressurized, but oil does not flow through them.  Flowing oil means it is being cooled and not just acting as an external reservoir.

Flow testing reveals that the oil cooler cap will outflow the Euro M3 Oil Filter Housing by more than 80% at the same, pressure, RPM, and oil temperature. In the upper RPM range, there is nearly a 100% improvement in flow from the RallyRoad oil cooler cap when compared to the Euro M3 oil filter housing.  This is a massive improvement over OE and is a worthwhile upgrade, especially in engines that see severe duty.

Features:

  • -8AN o-ring ports to provide a leak free fitting without the use of Teflon tape or sealant used by other oil cooler caps.
  • Viton o-rings are used throughout to maintain function and sealing in a high-temperature oil environment.
  • Use of the stock filter cap bolt to reduce cost and simplify installation.
  • An internal sealing mechanism to direct oil flow through the oil cooler and through the filter.
  • 1/8" NPT side port for external oil pressure gauge.

Kit Includes:

  • Oil filter cap with fittings
  • Oil filter sealing ring
  • BMW MANN Oil Filter and gasket

This part fits the following BMWs
1992-1999 E36 323i 325i 325is 328i 328is

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Precision Raceworks - Corporate Logo
T#:38161737
Part#: 201-0406
Ships on Dec 8, 2026
$ 24.99 USD
Free Shipping on orders $49 and up
This fitting allows you to install a 1/8" npt port anywhere you have an existing quick connect Compatible with the Motiv 0-10 Bar pressure sensor
Rally Road - Corporate Logo
T#:13694124
Part#: BMWE46FPIS
Ships on Dec 4, 2026
$ 45.99 USD
Free Shipping on orders $49 and up
Simplifies Fuel pump installation.
Rein - Corporate Logo
T#:38161721
Part#: 11237513862
Ships in 3 Business Days
$ 92.99 USD
Free Shipping on orders $49 and up


Rein - Corporate Logo
T#:6857
Part#: 11431740045
In Stock
$ 7.13 USD
Free Shipping on orders $49 and up
ENGINE O-RING 11431740045
Performance Tool - Corporate Logo
T#:1855998
Part#: W80535
Ships in 1-2 days
$ 1.99

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

$ 1.54 USD
Free Shipping on orders $49 and up
$ 1.54 USD
Free Shipping on orders $49 and up
Easy to read markings to set gaps quickly and easily.