BMW Engine Parts for BMW 7 Series F01 (2009+)

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:

Performance Ignition Coil - N Series
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:20320749
Part#: 12138616153T
In Stock
Sale - Save 10% $ 32.99
$ 29.69 USD
Free Shipping
Sale - Save 10% $ 32.99
$ 29.69 USD
Free Shipping
Our BMW ignition coils are designed with performance and efficiency in mind. An engine needs 3 main components to run (Air, Fuel, Spark.) Turner ignition coils are modified to increase energy output; more energy output results in a faster, more efficient and consistent burn to make sure your fuel is being utilized to its maximum potential. Our signature Turner ignition coils feature a blue housing that give your engine the performance and aesthetic your looking for. Ignition coils should be changed every 40,000 - 60,000 miles and are an important maintenance item due to the essential role they play in your engines health, performance and efficiency. Choose Turner Ignition Coils to keep your engine running strong and healthy. Features and Benefits: Increased performance Direct fitment Signature Turner Blue finish
Show More Show Less
Turner Motorsport - Corporate Logo
T#:591153
Part#: 026698TMS01-01
In Stock
Sale - Save 30% $ 52.99
$ 37.09 USD
Free Shipping on orders $49 and up
Sale - Save 30% $ 52.99
$ 37.09 USD
Free Shipping on orders $49 and up
This is a must-have for ALL BMWs, and simply installs in place of your existing drain plug. With every oil change you perform on your BMW, you'll be able to inspect for metal shavings and debris. Many times, if something is going wrong on your BMW's engine, the magnetic drain plug can give you an early warning. Our championship race team uses this info all the time (Ever find a piece of a valve spring in your oil? We have!) Be sure to get one now, and make the swap next oil change!
Show More Show Less
Crank Seal Guard - N52/N54/N55/S55
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:15876877
Part#: 049453LA01-02
In Stock
Sale - Save 25% $ 119.99
$ 89.99 USD
Free Shipping
Sale - Save 25% $ 119.99
$ 89.99 USD
Free Shipping

Introducing our Turner Motorsport Crank Seal Guard – the essential shield for your BMW's engine integrity. Safeguarding the heart of your vehicle, this meticulously designed guard offers robust protection for the crank seal concealed behind the harmonic balancer.

Considered an indispensable maintenance component for your BMW, the Crank Seal Guard acts as a crucial defense against a potential and preventable catastrophe involving your accessory belt. Facing the reality of potential oil or coolant leaks in your engine, this guard becomes a reliable barrier, preventing these fluids from reaching the accessory belt. The consequence of a compromised belt includes walking, slipping, fraying, and rubber particles finding their way behind the harmonic balancer and into the crank seal – a scenario that can lead to severe engine failure.

Let's be honest, engine leaks are a common occurrence, and whether your engine is currently leaking or not, the Crank Seal Guard is a proactive measure against future threats. The wear and tear on the accessory belt due to oil and coolant exposure can result in slipping, tearing, or, worst-case scenario, belt snapping – posing a significant risk to your engine's well-being.

Prepare your car for the long haul and protect the vital components, It's not a matter of "if" but "when" your belt will become a problem, and our Crank Seal Guard is your proactive solution. Rigorously tested on N52/N54/N55 and S55 for 100% confirmed fitment, it stands as a reliable guardian for your engine's health. Invest in the protection your BMW deserves with the Turner Motorsport Crank Seal Guard.

Key benefits:

Protect crank seal from rogue accessory belts and their shredded debris
Optimized to fit N52, N54, N55, and S55 engines
Rigid design that fits within the space constraints between the engine block and harmonic balancer
Zinc-coated fasteners for corrosion and oxidation resistance
Design:

Modeled and designed from FARO laser scanning and Solidworks CAD
Manufactured from 6061 billet aluminum
Turner blue anodizing
Installation:

It is a good idea to note how your belt is routed before starting the installation.

2 securing bolts for crank seal guard - Torque value of 20Nm

You will find either 6 or 8 E10 bolts are holding the harmonic balancer depending on the engine.

E10 (P#11237564511) ​
​N52: 6 bolts - Torque value of 25nm
N54: 6 bolts - Torque value of 35nm
N55: 8 bolts - Torque value of 35nm

E10 (P#11237575488)
S55: 8 Bolts - Torque value of 35nm

Show More Show Less

Performance Ignition Service Kit - NGK Colder Stepped Plugs - N54/N55...
Includes NGK 97506 which are two step colder than stock
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:18070228
Part#: 97506IGNTKT
In Stock
Sale - Save 5% $ 291.99
$ 276.18 USD
Free Shipping
Sale - Save 5% $ 291.99
$ 276.18 USD
Free Shipping

High performance ignition kit for your N54/N55 featuring colder stepped spark plugs, Turner high performance ignition coils and grease to make sure you have no issues at your next maintenance interval! Included plugs are one Step colder for N55, Two step colder for N54.

Our BMW ignition coils are designed with performance and efficiency in mind. An engine needs 3 main components to run (Air, Fuel, Spark.) Turner ignition coils are modified to increase energy output; more energy output results in a faster, more efficient and consistent burn to make sure your fuel is being utilized to its maximum potential. Our signature Turner ignition coils feature a blue housing that give your engine the performance and aesthetic your looking for.

Ignition coils should be changed every 40,000 - 60,000 miles and are an important maintenance item due to the essential role they play in your engines health, performance and efficiency. Choose Turner Ignition Coils to keep your engine running strong and healthy.

Features and Benefits:

Increased performance
New spark plugs and grease
Direct fitment
Signature Turner Blue ignition coils

Show More Show Less

Turner Motorsport - Corporate Logo
T#:23383277
Part#: TIGNITION6KT
In Stock
Sale - Save 10% $ 197.99
$ 178.15 USD
Free Shipping on orders $49 and up
Sale - Save 10% $ 197.99
$ 178.15 USD
Free Shipping on orders $49 and up
Our BMW ignition coils are designed with performance and efficiency in mind. An engine needs 3 main components to run (Air, Fuel, Spark.) Turner ignition coils are modified to increase energy output; more energy output results in a faster, more efficient and consistent burn to make sure your fuel is being utilized to its maximum potential. Our signature Turner ignition coils feature a blue housing that give your engine the performance and aesthetic your looking for. Ignition coils should be changed every 40,000 - 60,000 miles and are an important maintenance item due to the essential role they play in your engines health, performance and efficiency. Choose Turner Ignition Coils to keep your engine running strong and healthy. Features and Benefits: Increased performance Direct fitment Signature Turner Blue finish
Show More Show Less
Turner Baffled Oil Catch Can Kit - 8oz
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:398784
Part#: 022798TMS01-07KT
In Stock
Sale - Save 20% $ 319.99
$ 255.99 USD
Free Shipping
Sale - Save 20% $ 319.99
$ 255.99 USD
Free Shipping
When we designed this catch we wanted to have the most function options available, the best separation method, and the easiest to service. The Turner engineered catch cans offer a pre-setup design based ion desired flow direction, however, this does not limit you to this flow. The inner baffle orientation can be easily adjusted to flow in both directions in case you decide to move this catch can to a different vehicle. A 4 chamber system baffle system inside the catch can was engineered to create multiple changes in the direction of airflow within the separator to cause oil droplets to fall out of suspension before exiting the catch can. Having a closed/recirculated design reduces oil ingestion and promotes cleaner emissions and odor-less operation.
Show More Show Less

Turner Titanium Magnetic Drain Plug - M18x1.5
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:6366590
Part#: 008666LA01KT
In Stock
Sale - Save 20% $ 58.99
$ 47.19 USD
Free Shipping on orders $49 and up
Sale - Save 20% $ 58.99
$ 47.19 USD
Free Shipping on orders $49 and up
This is a must-have for ALL BMWs, and simply installs in place of your existing drain plug. With every oil change you perform on your BMW, you'll be able to inspect for metal shavings and debris. Many times, if something is going wrong on your BMW's engine, the magnetic drain plug can give you an early warning. Our championship race team uses this info all the time (Ever find a piece of a valve spring in your oil? We have!) Be sure to get one now, and make the swap next oil change!
Show More Show Less
Turner Baffled Oil Universal Catch Can Kit - 10oz
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:398786
Part#: 022798TMS01-09KT
In Stock
Sale - Save 20% $ 299.99
$ 239.99 USD
Free Shipping
Sale - Save 20% $ 299.99
$ 239.99 USD
Free Shipping
When we designed this catch we wanted to have the most function options available, the best separation method, and the easiest to service. The Turner engineered catch cans offer a pre-setup design based ion desired flow direction, however this does not limit you to this flow.
Show More Show Less

Turner Motorsport - Corporate Logo
T#:34147756
Part#: N5X-WPC-RB
In Stock
Sale - Save 25% $ 498.99
$ 374.24 USD
Free Shipping on orders $49 and up
Sale - Save 25% $ 498.99
$ 374.24 USD
Free Shipping on orders $49 and up

Upgrade your engine build with Turner's WPC-treated Race Series Bearings, engineered for serious performance enthusiasts. Starting with ACL’s high-performance bearing shells, these Race Series bearings are built to withstand extreme RPMs and stress. Utilizing a "Duraglide" tri-metal construction and a high-strength overlay plate, these bearings offer superior oiling and heat resistance for high-RPM operation.

Our WPC-treated bearings take ACL’s already impressive design and enhance it even further. The WPC treatment process strengthens and smooths the bearing surface by firing high-speed, ultra-fine particles at the bearing shells, reducing friction and improving durability. This advanced surface treatment ensures smoother operation and improved heat dissipation, which are critical for any high-performance engine.

Key Features:

Duraglide Tri-Metal Construction: ACL's Race Series bearings feature a high-strength overlay for enhanced performance. Optimized Oiling: Designed to promote better oil flow during high-RPM conditions. Precise Fitment: Manufactured with OEM-level precision using micron tolerance machining. WPC-Treated for Strength: Surface treatment adds strength and reduces friction for improved engine performance. No Flash Plating: Allows for better heat transfer and bearing retention. Thermal Discharge Process: Smoother, stronger components through WPC’s unique thermal discharge technology. Enhanced Heat and Friction Resistance: Built to combat the biggest enemies of high-performance engines. Don’t settle for standard bearings—choose Turner Motorsport WPC-treated Race Series Bearings for the ultimate engine performance upgrade. Perfect for your next engine rebuild or rod bearing service!

Show More Show Less

Turner Baffled Oil Catch Can Kit - 6oz
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:398782
Part#: 022798TMS01-05KT
In Stock
Sale - Save 15% $ 287.99
$ 244.79 USD
Free Shipping
Sale - Save 15% $ 287.99
$ 244.79 USD
Free Shipping
When we designed this catch we wanted to have the most function options available, the best separation method, and the easiest to service. The Turner engineered catch cans offer a pre-setup design based ion desired flow direction, however, this does not limit you to this flow. The inner baffle orientation can be easily adjusted to flow in both directions in case you decide to move this catch can to a different vehicle. A 4 chamber system baffle system inside the catch can was engineered to create multiple changes in the direction of airflow within the separator to cause oil droplets to fall out of suspension before exiting the catch can. Having a closed/recirculated design reduces oil ingestion and promotes cleaner emissions and odor-less operation.
Show More Show Less
Turner Motorsport - Corporate Logo
T#:18070227
Part#: 12120037244TKT
In Stock
Sale - Save 13% $ 291.99
$ 253.29 USD
Free Shipping
Sale - Save 13% $ 291.99
$ 253.29 USD
Free Shipping

High performance ignition kit for your N54 featuring spark plugs, Turner high performance ignition coils and grease to make sure you have no issues at your next maintenance interval!

Our BMW ignition coils are designed with performance and efficiency in mind. An engine needs 3 main components to run (Air, Fuel, Spark.) Turner ignition coils are modified to increase energy output; more energy output results in a faster, more efficient and consistent burn to make sure your fuel is being utilized to its maximum potential. Our signature Turner ignition coils feature a blue housing that give your engine the performance and aesthetic your looking for.

Ignition coils should be changed every 40,000 - 60,000 miles and are an important maintenance item due to the essential role they play in your engines health, performance and efficiency. Choose Turner Ignition Coils to keep your engine running strong and healthy.

Features and Benefits:

Increased performance
New spark plugs and grease
Direct fitment
Signature Turner Blue ignition coils

Show More Show Less
WPC-Treated Race Series Rod Bearings - Complete Set - BMW N63 S63 ...
For Vehicles with a Production Date from 03/2011
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:34147761
Part#: N63-WPC-RB
In Stock
Sale - Save 25% $ 640.99
$ 480.74 USD
Free Shipping on orders $49 and up
Sale - Save 25% $ 640.99
$ 480.74 USD
Free Shipping on orders $49 and up

Upgrade your engine build with Turner's WPC-treated Race Series Bearings, engineered for serious performance enthusiasts. Starting with ACL’s high-performance bearing shells, these Race Series bearings are built to withstand extreme RPMs and stress. Utilizing a "Duraglide" tri-metal construction and a high-strength overlay plate, these bearings offer superior oiling and heat resistance for high-RPM operation.

Our WPC-treated bearings take ACL’s already impressive design and enhance it even further. The WPC treatment process strengthens and smooths the bearing surface by firing high-speed, ultra-fine particles at the bearing shells, reducing friction and improving durability. This advanced surface treatment ensures smoother operation and improved heat dissipation, which are critical for any high-performance engine.

Key Features:

Duraglide Tri-Metal Construction: ACL's Race Series bearings feature a high-strength overlay for enhanced performance. Optimized Oiling: Designed to promote better oil flow during high-RPM conditions. Precise Fitment: Manufactured with OEM-level precision using micron tolerance machining. WPC-Treated for Strength: Surface treatment adds strength and reduces friction for improved engine performance. No Flash Plating: Allows for better heat transfer and bearing retention. Thermal Discharge Process: Smoother, stronger components through WPC’s unique thermal discharge technology. Enhanced Heat and Friction Resistance: Built to combat the biggest enemies of high-performance engines. Don’t settle for standard bearings—choose Turner Motorsport WPC-treated Race Series Bearings for the ultimate engine performance upgrade. Perfect for your next engine rebuild or rod bearing service!

Show More Show Less


Turner Motorsport - Corporate Logo
T#:18070236
Part#: N54IGNTKT
In Stock
Sale - Save 10% $ 294.99
$ 265.38 USD
Free Shipping
Sale - Save 10% $ 294.99
$ 265.38 USD
Free Shipping

High performance ignition kit for your N54 featuring Brisk 1 step colder spark plugs, Turner high performance ignition coils and grease to make sure you have no issues at your next maintenance interval!

Our BMW ignition coils are designed with performance and efficiency in mind. An engine needs 3 main components to run (Air, Fuel, Spark.) Turner ignition coils are modified to increase energy output; more energy output results in a faster, more efficient and consistent burn to make sure your fuel is being utilized to its maximum potential. Our signature Turner ignition coils feature a blue housing that give your engine the performance and aesthetic your looking for. All Turner Ignition coils are back by a confidence inspiring 2 year warranty.

Ignition coils should be changed every 40,000 - 60,000 miles and are an important maintenance item due to the essential role they play in your engines health, performance and efficiency. Choose Turner Ignition Coils to keep your engine running strong and healthy.

Features and Benefits:

Increased performance
New spark plugs and grease
Direct fitment
Signature Turner Blue ignition coils
Ignition coils backed by a 2-year warranty

Show More Show Less
Turner Baffled Oil Catch Can - Standard Flow 6oz
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:38419077
Part#: 022798TMS01-01
In Stock
New Item
Sale - Save 58% $ 208.99
$ 87.14 USD
Free Shipping on orders $49 and up
Sale - Save 58% $ 208.99
$ 87.14 USD
Free Shipping on orders $49 and up

When we designed this catch we wanted to have the most function options available, the best separation method, and the easiest to service. The Turner engineered catch cans offer a pre-setup design based ion desired flow direction, however this does not limit you to this flow. The inner baffle orientation can be easily adjusted to flow in both directions in case you decide to move this catch can to a different vehicle. A 4 chamber system  baffle system inside the catch can was engineered to create multiple changes in the direction of airflow within the separator to cause oil droplets to fall out of suspension before exiting the catch can. Having a closed / recirculated design reduces oil ingestion and promotes cleaner emissions and odor-less operation.

Our catch can was also designed with the idea that the cans fill level can easily be checked with a top mounted dipstick and an optional use bottom drain hole. The drain system comes complete with a valve and hose to be mounted at a lower area of the vehicle so when you're doing an oil change you can drain the catch can.

Features:

  • 6061-T6 billet machined body, anodized black for lasting protection and appearance
  • Strategically positioned 4 chamber baffle system maximizes oil / air separation 
  • Knurled and black anodized oil dipstick makes inspecting oil volume of reservoir clean and simple
  • Sealed with a pre-installed viton O-Ring
  • Includes 2.5mm allen key to remove baffle plates for cleaning
  • Engineered to create multiple changes in the direction of airflow within the separator to cause oil droplets to fall out of suspension before exiting the catch can
  • Closed / recirculated design reduces oil ingestion and promotes cleaner emissions and odor-less operation
  • Optional use drain hole - drain kit included!
  • Universal mounting kit
Show More Show Less
Turner Baffled Oil Catch Can - Standard Flow 8oz
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:38419062
Part#: 022798TMS01-02
In Stock
New Item
Sale - Save 48% $ 208.99
$ 107.76 USD
Free Shipping on orders $49 and up
Sale - Save 48% $ 208.99
$ 107.76 USD
Free Shipping on orders $49 and up

When we designed this catch we wanted to have the most function options available, the best separation method, and the easiest to service. The Turner engineered catch cans offer a pre-setup design based ion desired flow direction, however this does not limit you to this flow. The inner baffle orientation can be easily adjusted to flow in both directions in case you decide to move this catch can to a different vehicle. A 4 chamber system  baffle system inside the catch can was engineered to create multiple changes in the direction of airflow within the separator to cause oil droplets to fall out of suspension before exiting the catch can. Having a closed / recirculated design reduces oil ingestion and promotes cleaner emissions and odor-less operation.

Our catch can was also designed with the idea that the cans fill level can easily be checked with a top mounted dipstick and an optional use bottom drain hole. The drain hole can be used with a valve and hose to be mounted at a lower area of the vehicle so when you're doing an oil change you can drain the catch can.

Features:

  • 6061-T6 billet machined body, anodized black for lasting protection and appearance
  • Strategically positioned 4 chamber baffle system maximizes oil / air separation 
  • Knurled and black anodized oil dipstick makes inspecting oil volume of reservoir clean and simple
  • Sealed with a pre-installed viton O-Ring
  • Includes 2.5mm allen key to remove baffle plates for cleaning
  • Engineered to create multiple changes in the direction of airflow within the separator to cause oil droplets to fall out of suspension before exiting the catch can
  • Closed / recirculated design reduces oil ingestion and promotes cleaner emissions and odor-less operation
  • Optional use drain hole (valve and hose sold separately, watch for our model specific drain kits!)
Show More Show Less

Turner Motorsport - Corporate Logo
T#:34147790
Part#: N5X-WPC-MB
In Stock
Sale - Save 40% $ 595.99
$ 357.59 USD
Free Shipping on orders $49 and up
Sale - Save 40% $ 595.99
$ 357.59 USD
Free Shipping on orders $49 and up

Upgrade your engine build with Turner's WPC-treated Race Series Bearings, engineered for serious performance enthusiasts. Starting with ACL’s high-performance bearing shells, these Race Series bearings are built to withstand extreme RPMs and stress. Utilizing a "Duraglide" tri-metal construction and a high-strength overlay plate, these bearings offer superior oiling and heat resistance for high-RPM operation.

Our WPC-treated bearings take ACL’s already impressive design and enhance it even further. The WPC treatment process strengthens and smooths the bearing surface by firing high-speed, ultra-fine particles at the bearing shells, reducing friction and improving durability. This advanced surface treatment ensures smoother operation and improved heat dissipation, which are critical for any high-performance engine.

Key Features:

Duraglide Tri-Metal Construction: ACL's Race Series bearings feature a high-strength overlay for enhanced performance. Optimized Oiling: Designed to promote better oil flow during high-RPM conditions. Precise Fitment: Manufactured with OEM-level precision using micron tolerance machining. WPC-Treated for Strength: Surface treatment adds strength and reduces friction for improved engine performance. No Flash Plating: Allows for better heat transfer and bearing retention. Thermal Discharge Process: Smoother, stronger components through WPC’s unique thermal discharge technology. Enhanced Heat and Friction Resistance: Built to combat the biggest enemies of high-performance engines. Don’t settle for standard bearings—choose Turner Motorsport WPC-treated Race Series Bearings for the ultimate engine performance upgrade. Perfect for your next engine rebuild or main bearing service!

Show More Show Less

Turner Baffled Oil Catch Can - Standard Flow 10oz
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:38419079
Part#: 022798TMS01-03
In Stock
New Item
$ 199.99
$ 154.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 199.99
$ 154.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
When we designed this catch we wanted to have the most function options available, the best separation method, and the easiest to service. The Turner engineered catch cans offer a pre-setup design based ion desired flow direction, however this does not limit you to this flow.
Show More Show Less
WPC-Treated Connecting Rod Bearings - Complete Set - BMW N63/S63 4.4L...
For vehicles with a production date up to 03/2011
For vehicles with a production date up to 03/2011
Turner Motorsport - Corporate Logo
T#:41863728
Part#: S63-WPC-RB
In Stock
New Item
Sale - Save 13% $ 549.99
$ 480.74 USD
Sale - Save 13% $ 549.99
$ 480.74 USD
What's better than using standard connecting rod bearings in your next engine build? Using our Turner Motorsport WPC-treated bearings! Our process begins with King Engine Bearings bearing shells. Designed with performance and load capacity in mind, King's SV Series bearings feature a Lead-free, tri-metal Silver-based overlay with a Babbitt plating made to provide seizure resistance. Ideal for extreme-load engines, it serves as an OE replacement and can be employed as a sputter replacement. Despite offering great wear and friction resistance, the engineers at Turner Motorsport saw an opportunity to further improve King's bearing design with WPC surface treatment. WPC reduces friction and adds strength, vastly enhancing the durability of critical internal engine components. Ultra-fine particles are fired at the surface at very high speeds—similar to shot-peening, but on a much smaller scale. The treated parts come out smoother and stronger due to thermal discharge. The two greatest enemies of any high-performance engine are heat and friction, and WPC technology effectively reduces both.
Show More Show Less

WPC Treated Cam Bearing Ledge - Intake
10X Entries For Our Spin To Win Sweepstakes!
Turner Motorsport - Corporate Logo
T#:13299338
Part#: 11127550913WPC2
In Stock
Sale - Save 10% $ 880.99
$ 792.89 USD
Sale - Save 10% $ 880.99
$ 792.89 USD
Dinan N-Series Performance Ignition Coil - Red - BMW M54 S54 N20 N26 ...
Some N63/S63 applications may require a minor modification (removal) of a small molding...
5X Entries For Our Spin To Win Sweepstakes!
Dinan - Corporate Logo
T#:4908029
Part#: D650-0003
In Stock
$ 31.95 USD
Free Shipping on orders $49 and up
$ 31.95 USD
Free Shipping on orders $49 and up
Dinan Ignition Coils are designed to be a direct plug-and-play replacement, or upgrade, to factory coils and provide greater energy output. With up to 10% more energy output than stock, you are ensured a stronger and more consistent spark. Whether you are replacing dilapidated coils that are causing sluggish acceleration and/or misfires or simply upgrading for a more reliable and consistent spark your ignition system will be more efficient with a new set of Dinan coils. For those that like to showcase engine modifications they even come in a variety of unique housing colors to choose from for that personalized touch!
Show More Show Less

Dinan N-Series Performance Ignition Coil - Blue - BMW M54 S54 N20 N26...
Some N63/S63 applications may require a minor modification (removal) of a small molding...
5X Entries For Our Spin To Win Sweepstakes!
Dinan - Corporate Logo
T#:4908030
Part#: D650-0004
In Stock
$ 31.99 USD
Free Shipping
$ 31.99 USD
Free Shipping
Dinan Ignition Coils are designed to be a direct plug-and-play replacement, or upgrade, to factory coils and provide greater energy output. With up to 10% more energy output than stock, you are ensured a stronger and more consistent spark. Whether you are replacing dilapidated coils that are causing sluggish acceleration and/or misfires or simply upgrading for a more reliable and consistent spark your ignition system will be more efficient with a new set of Dinan coils. For those that like to showcase engine modifications they even come in a variety of unique housing colors to choose from for that personalized touch!
Show More Show Less

Delphi - Corporate Logo
T#:14742
Part#: 12138616153
In Stock
$ 24.99 USD
Free Shipping
$ 24.99 USD
Free Shipping
Ignition coils are key to the efficiency and performance of your BMW. With a faulty coil the spark plug is not burning the air/fuel mixture properly and that can lead to problems anywhere in the engine and exhaust (including catalytic converters and O2 sensors).
Show More Show Less
Genuine BMW - Corporate Logo
T#:222522
Part#: 11128655331
In Stock
12% off MSRP $ 27.66
$ 24.36 USD
Free Shipping on orders $49 and up
12% off MSRP $ 27.66
$ 24.36 USD
Free Shipping on orders $49 and up
Genuine BMW Cap For Oil Filler - 11128655331

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.
Show More Show Less
Eldor - Corporate Logo
T#:641259
Part#: 12138657273
In Stock
$ 29.76 USD
Free Shipping on orders $49 and up
Used in a wide variety of BMW engines to ensure proper spark plug operation.


Eldor - Corporate Logo
T#:29234309
Part#: 12138616153
In Stock
$ 33.99 USD
Free Shipping on orders $49 and up
$ 33.99 USD
Free Shipping on orders $49 and up

Ignition coils are key to the efficiency and performance of your BMW. With a faulty coil the spark plug is not burning the air/fuel mixture properly and that can lead to problems anywhere in the engine and exhaust (including catalytic converters and O2 sensors). Problems with one or more coils will cause a fault code but not always a check engine light. A misfire code may be related to an ignition coil but could be from other things as well. Sometimes a visual inspection of a coil and coil boot will give an indication of a failure. You can also move coils around to different cylinder banks to see if the misfire code follows a suspect coil. We suggest always having one or two coils on hand to keep as spares.

This is the current replacement for some BMW 6 and 8-cylinder engines built in the late 2000s and after. BMW has made numerous changes to ignition coil part numbers in recent years but has approved this part number to work in the vehicles listed below. It's listed as a replacement coil for N20, N55, and S55 engines. In March 2015 BMW approved it for N51/N52 engines. This part number replaces the previous BMW part number 12137594937 for the cars listed below.

Sold per coil. Includes boot and connector.

Show More Show Less
Bavarian Autosport - Corporate Logo
T#:578618
Part#: 5005
Ships on Aug 11, 2025
$ 29.99 USD
Free Shipping on orders $49 and up
$ 29.99 USD
Free Shipping on orders $49 and up
A simple yet effective upgrade, these Bav Auto High-Performance Ignition Coils feature modified core windings that offer increased firepower and promote a faster, more efficient burn. The result is greater low-end torque and increased horsepower in the mid to top-end. When used in a properly functioning engine, a noticeable difference can be felt. In addition to better torque and horsepower, fuel economy is also improved! These coils come with new spark plug boots. 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.
Show More Show Less
ECS Tuning Magnetic Oil Drain Plug - M12x1.5
10X Entries For Our Spin To Win Sweepstakes!
ECS - Corporate Logo
T#:361057
Part#: 002201ECS01A
Ships on Aug 8, 2025
Sale - Save 40% $ 36.99
$ 22.19 USD
Free Shipping on orders $49 and up
Sale - Save 40% $ 36.99
$ 22.19 USD
Free Shipping on orders $49 and up
Turn your oil drain plug into an effective metal particle filter! This drain plug fits virtually all BMWs, and has a SUPER strong magnet built into it's tip, trapping iron and steel contaminants and safely removing them from the circulation.
Show More Show Less

Dinan N-Series Performance Ignition Coil - Black - BMW M54 S54 N20 N2...
Some N63/S63 applications may require a minor modification (removal) of a small molding...
5X Entries For Our Spin To Win Sweepstakes!
Dinan - Corporate Logo
T#:4908028
Part#: D650-0002
In Stock
$ 31.99 USD
Free Shipping on orders $49 and up
$ 31.99 USD
Free Shipping on orders $49 and up
Dinan Ignition Coils are designed to be a direct plug-and-play replacement, or upgrade, to factory coils and provide greater energy output. With up to 10% more energy output than stock, you are ensured a stronger and more consistent spark. Whether you are replacing dilapidated coils that are causing sluggish acceleration and/or misfires or simply upgrading for a more reliable and consistent spark your ignition system will be more efficient with a new set of Dinan coils. For those that like to showcase engine modifications they even come in a variety of unique housing colors to choose from for that personalized touch!
Show More Show Less

Genuine BMW - Corporate Logo
T#:2788
Part#: 16117222391
In Stock
Sale - Save 5% $ 34.04
$ 32.34 USD
Free Shipping on orders $49 and up
Sale - Save 5% $ 34.04
$ 32.34 USD
Free Shipping on orders $49 and up
This fuel cap is an original BMW product. A faulty gas cap can often be the cause a fault code and trigger a "check engine" light.
Bosch - Corporate Logo
T#:340644
Part#: 12137594937
In Stock
$ 25.99 USD
Free Shipping on orders $49 and up
$ 25.99 USD
Free Shipping on orders $49 and up

 

This is the OEM Bosch ignition coil that is the current replacement for most BMW 6 and 8-cylinder engines built since 2003. It's listed as a replacement coil for M54, M56, S54, N52, N54, N62, N63, N73, S63, S63TU and other engines. BMW has made numerous changes to ignition coil part numbers in recent years but has approved this part number to work in the vehicles listed in our fitments tab. This part number replaces previous BMW part numbers 12130390064, 12130148594, 12131712219, and 12137551260.

Ignition coils are key to the efficiency and performance of your BMW. With a faulty coil the spark plug is not burning the air/fuel mixture properly and that can lead to problems anywhere in the engine and exhaust (including catalytic converters and O2 sensors). Problems with one or more coils will cause a fault code but not always a check engine light. A misfire code may be related to an ignition coil but could be from other things as well. Sometimes a visual inspection of a coil and coil boot will give an indication of a failure. You can also move coils around to different cylinder banks to see if the misfire code follows a suspect coil. We suggest always having one or two coils on hand to keep as spares.

This Bosch part also satisfies BMW's service bulletin for 2001-2003 E46 M3 ignition coils (SIB 12 24 05). That SIB calls for Bremi or ERA brand coils but BMW has replaced them with this Bosch design.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

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!

Sold per coil. Includes connecting boot.

Show More Show Less

CTS - Corporate Logo
T#:5001916
Part#: CTS-IGN-008
Back Ordered
$ 27.99 USD
Free Shipping
$ 27.99 USD
Free Shipping
CTS Turbo is proud to announce its high-performance replacement ignition coil packs for the BMW vehicles. These are the perfect replacement or upgrade to your N20, N26, N52, N54, N55, N63, S63, S55, M52, M54, S54 engine to keep it running at its peak performance. Also compatible with R5x Mini Cooper vehicles.
Show More Show Less
Genuine BMW - Corporate Logo
T#:363413
Part#: 61432408594
In Stock
Sale - Save 5% $ 199.99
$ 189.99 USD
Free Shipping
Sale - Save 5% $ 199.99
$ 189.99 USD
Free Shipping
When your car sits for a long period of time, your BMW's battery will gradually discharge. This battery charger will keep your BMW's battery fully charged and ready for your next driving adventure.

NGK - Corporate Logo
T#:587466
Part#: 97506S8KT
In Stock
$ 119.99 USD
Free Shipping
$ 119.99 USD
Free Shipping
When it comes time to change your spark plugs, you may wonder about colder stepped spark plugs as many others have. Colder spark plugs work by pulling more heat out of the engine's cylinders (making them "colder") and dissipating it into the engine's head, which is then cooled by the cooling system. Depending on how you have your engine built, these could be a great addition! Colder plugs can help prevent engine knock and prevent the tip of the spark plug from melting or misfiring. There are two rules that most people tend to go by when deciding on which spark plugs to buy: The first rule of thumb is that with every 100 horsepower added, you should run spark plugs that are a step colder than your stock plugs. This is generally accepted across the motorsports community but unfortunately isn't always the most accurate measurement of when you will need colder plugs. The second rule is to go a step colder any time you massively alter cylinder temperatures by adding forced induction to an NA engine, by increasing compression ratio, after altering timing in a major way, or by changing fuel types to something with a higher octane rating such as racing fuel. Adding spark plugs that are a step colder outside of these conditions, with no real change to the engine, can actually hurt more than help by leading to spark plugs fouling quicker than normal and by making the car harder to start in cold weather conditions. We suggest talking to your engine builder or tuner before making the change, or you can call our Turner Motorsport sales staff to discuss what modifications have been made to your vehicle and see if these plugs are right for you!
Show More Show Less

BMW M54 N54 N55 Performance Ignition Coil - Red - Set Of Six ...
5X Entries For Our Spin To Win Sweepstakes!
Dinan - Corporate Logo
T#:23880757
Part#: D650-0003KT1
In Stock
Sale - Save 19% $ 191.99
$ 156.33 USD
Free Shipping on orders $49 and up
Sale - Save 19% $ 191.99
$ 156.33 USD
Free Shipping on orders $49 and up

Boost your engine's capabilities with the Dinan N-Series Performance Ignition Coils - a vivid set of six in striking red. Precision-engineered to amplify ignition power, these coils guarantee heightened throttle response, seamless idling, and a notable surge in overall power. Meticulously crafted for durability, they seamlessly integrate into your vehicle, enhancing both performance and aesthetic appeal under the hood.

Show More Show Less
King - Corporate Logo
T#:598331
Part#: CR222SV
In Stock
$ 52.00 USD
Free Shipping on orders $49 and up
Introducing King Connecting Rod Bearings for BMW Engines: the ultimate solution for enhancing your engine's performance. Crafted with precision and expertise, King's bearings offer unmatched durability and reliability. Designed to meet the demands of high-performance driving, they provide the stability and support your engine needs. Elevate your BMW driving experience with King Bearings. King Rod Bearings for BMW Engines come in sets of 2 (2 Upper and 2 Lower Bearing Shells) Suitable for 2 Con-Rods. The Upper and Lower bearing shells are comprised of a lead-free, Silver-based tri-metal material designed for extreme load applications. Engineered with meticulous attention to detail, King bearings are designed to exact standards to ensure optimal fitment and compatibility with BMW engines. Experience improved smoother engine operation with King Bearings.
Show More Show Less
OEM Rein Oil Pan Bolt Set - M54 N52 N54 N55
2X Entries For Our Spin To Win Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:379282
Part#: 11132210959
In Stock
$ 31.99 USD
Free Shipping on orders $49 and up

This is a replacement set of bolts for the oil pan on your BMW equipped with an M54, N52, N54, or N55. The stock bolts are easy to strip, break, or even lose. Replace your missing or damaged bolts with all new hardware from OEM Rein to ensure a tight seal all around your oil pan and prevent oil leaks.

Check fitment with our guide above to ensure these are the oil pan bolts required for your vehicle.

Show More Show Less


Bosch - Corporate Logo
T#:588121
Part#: 12138616153
In Stock
Sale - Save 5% $ 32.99
$ 31.34 USD
Free Shipping on orders $49 and up
Sale - Save 5% $ 32.99
$ 31.34 USD
Free Shipping on orders $49 and up
Sluggish acceleration, misfires, and rusty terminals are symptoms of a worn coil. Located on the top of your engine, these coils should be inspected and replaced as needed or every 100,000 miles. Keep your ignition system in perfect order. Rubber integrated boot and snap-top cap. OEM Bosch Part Number: 0221504800
Show More Show Less
Genuine BMW - Corporate Logo
T#:31515
Part#: 11127587804
In Stock
Sale - Save 5% $ 49.84
$ 47.35 USD
Free Shipping on orders $49 and up
Sale - Save 5% $ 49.84
$ 47.35 USD
Free Shipping on orders $49 and up
Genuine BMW Profile-Gasket
Genuine BMW - Corporate Logo
T#:5390
Part#: 12631742690
In Stock
Sale - Save 6% $ 22.99
$ 21.60 USD
Free Shipping on orders $49 and up
Sale - Save 6% $ 22.99
$ 21.60 USD
Free Shipping on orders $49 and up
This relay is used for the SMG system on the E46 M3 and various applications including secondary air systems on other BMW's. If you find that your SMG-equipped E46 M3 is not starting, this is one of the first places to check as it controls power to the hydraulic unit (the car will not start without hydraulics). Buy one to fix the issue and buy a second so you're not stranded in the future!
Show More Show Less

Genuine BMW - Corporate Logo
T#:181016
Part#: 12120037582
In Stock
Sale - Save 3% $ 23.18
$ 22.48 USD
Free Shipping on orders $49 and up
Sale - Save 3% $ 23.18
$ 22.48 USD
Free Shipping on orders $49 and up
This is an Genuine BMW High Power Spark Plug - Bosch # ZR5TPP33S. It is used on BMW's with the N55 twin scoll turbocharged 6 cylinder engine. We recommend changing spark plugs every 60,000-80,0000 miles.

This item fits the following BMWs:
2011+ E82 BMW 135i 135is
2014+ F22 BMW M235i
2011 E90 BMW 335i 335xi 335i xDrive - Sedan
2011-2013 E92 BMW 335i 335xi 335i xDrive - Coupe
2011-2013 E93 BMW 335i - Convertible
2012+ F30 BMW 335i 335i xDrive - Sedan
2014+ F34 BMW 335i xDrive GT - Gran Tourismo
2013+ F32 BMW 435i 435i xDrive - Coupe
2013+ F33 BMW 435i Convertible - Convertible
2014+ F36 BMW 435i Gran Coupe 435i xDrive Gran Coupe
2010+ F07 BMW 535i GT, 535i xDrive GT
2011+ F10 BMW 535i 535i xDrive
2012+ F12 BMW 640i
2013+ F06 BMW 640i Gran Coupe
2009+ F01 BMW 740i 740li 740li xDrive
2013+ E84 BMW X1 xDrive35i
2011+ F25 BMW X3 xDrive35i
2011-2013 E70 BMW X5 xDrive35i
2014+ F15 BMW X5 sDrive35i X5 xDrive35i
2011+ E71 BMW X6 xDrive35i
Show More Show Less

ACL - Corporate Logo
T#:567606
Part#: 6B1584H-STD
In Stock
$ 179.99 USD
Free Shipping
$ 179.99 USD
Free Shipping

Introducing the BMW N52, N54, N55, and S55 Race Series High-Performance Con Rod Bearing Set by Automotive Components Limited. Elevate your BMW's performance with these precision-engineered con rod bearings, specifically designed for performance BMW engines.

Key Features:

Premium Quality: Crafted with the utmost precision and durability, this con rod bearing set ensures high performance and reliability for your BMW. Race Series Design: Engineered to meet the demands of race applications, these bearings are well-suited for high-performance driving scenarios. Enhanced Engine Protection: The bearings provide essential protection for your engine components, ensuring their longevity even under extreme conditions. Perfect Fit: Designed to seamlessly fit BMW N52, N54, N55, and S55 engines found in many newer BMWs, these bearings are a direct replacement for your stock components. Improved Performance: Experience enhanced engine performance and responsiveness, making it ideal for racing and high-performance driving. Upgrade your BMW with the Race Series High-Performance Con Rod Bearing Set from Automotive Components Limited. Enhance your vehicle's performance and enjoy peace of mind knowing your engine is protected by top-quality components.

Show More Show Less
Bavarian Autosport - Corporate Logo
T#:26305110
Part#: 11377603979
In Stock
Sale - Save 10% $ 239.99
$ 215.99 USD
Free Shipping on orders $49 and up
Sale - Save 10% $ 239.99
$ 215.99 USD
Free Shipping on orders $49 and up

NOCO - Corporate Logo
T#:641112
Part#: GB150
Ships Jul 9, 2025
20% off MSRP $ 374.99
$ 299.99 USD
Free Shipping
20% off MSRP $ 374.99
$ 299.99 USD
Free Shipping

The GB150 is a compact and high-powered lithium-ion battery jump starter pack, capable of delivering an impressive 3,000 amps for jump-starting a dead battery in seconds. Equipped with patented safety technology, it ensures spark-proof connections and reverse polarity protection, making it safe and user-friendly for everyone. Not only does it serve as a potent battery booster, but it also functions as a portable power source for recharging USB devices like smartphones, tablets, and more, or for powering 12-volt devices such as tire inflators and power inverters. Designed to support a wide range of vehicles including cars, boats, RVs, trucks, and more, it's compatible with gas engines up to 9.0 liters and diesel engines up to 7.0 liters.


Features: 

  • Compact, yet powerful lithium jump starter rated at 3,000 amps up to 80 jump starts on a single charge.
  • An ultra-safe and mistake-proof design with spark-proof technology and reverse polarity protection, which allows it to safely connect to any battery.
  • An ultra-bright 500 lumen LED flashlight with 7 light modes including SOS and emergency strobe.
  • Power 12V devices anywhere, like tire inflators, power inverters, and more.
  • Recharge your personal devices on the go, like smartphones, tablets, e-watches and more - up to 6 smartphone recharges.
  • Designed for both gas engines up to 9.0 liters and diesel engines up to 7.0 liters for cars, SUVs, trucks, boats, RVs, and more.


WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. See above warning label as well as http://www.p65warnings.ca.gov for further information on Proposition 65 warnings.

Show More Show Less
Fuel Injector - Priced Each
For vehicles with a production date up to 07/2013
We Price Match - Give Us A Call or Chat!
Bosch - Corporate Logo
T#:594993
Part#: 13647599876
In Stock
$ 81.99 USD
Free Shipping
$ 81.99 USD
Free Shipping

Enhance engine performance and driveability in your BMW 4.4L N63/S63 with the Bosch Fuel Injector. Replace those old, dirty, high mileage fuel injectors with this specifically designed component from Bosch. Priced individually, this fuel injector ensures optimal fuel delivery, restoring efficiency to your BMW's engine.

  • Restores engine performance
  • Enhances driveability
  • Specifically designed for BMW 4.4L N63/S63 engines
  • Replaces old, dirty, high mileage fuel injectors
  • Ensures optimal fuel delivery
  • Priced individually for cost-effective replacement
  • High-quality Bosch brand reliability
Show More Show Less

ECS - Corporate Logo
T#:363147
Part#: 003296ECS01
In Stock
Sale - Save 35% $ 149.99
$ 97.49 USD
Free Shipping
Sale - Save 35% $ 149.99
$ 97.49 USD
Free Shipping
BMW uses a lot of plastic in their engine components to save weight and money. Unfortunately, plastic is damaged easily and the factory oil filter cap needs a special tool to remove.

NGK - Corporate Logo
T#:568293
Part#: 97506
In Stock
$ 89.34 USD
Free Shipping
$ 89.34 USD
Free Shipping
When it comes time to change your spark plugs, you may wonder about colder stepped spark plugs as many others have. Colder spark plugs work by pulling more heat out of the engine's cylinders (making them "colder") and dissipating it into the engine's head, which is then cooled by the cooling system. Depending on how you have your engine built, these could be a great addition! Colder plugs can help prevent engine knock and prevent the tip of the spark plug from melting or misfiring. There are two rules that most people tend to go by when deciding on which spark plugs to buy: The first rule of thumb is that with every 100 horsepower added, you should run spark plugs that are a step colder than your stock plugs. This is generally accepted across the motorsports community but unfortunately isn't always the most accurate measurement of when you will need colder plugs. The second rule is to go a step colder any time you massively alter cylinder temperatures by adding forced induction to an NA engine, by increasing compression ratio, after altering timing in a major way, or by changing fuel types to something with a higher octane rating such as racing fuel. Adding spark plugs that are a step colder outside of these conditions, with no real change to the engine, can actually hurt more than help by leading to spark plugs fouling quicker than normal and by making the car harder to start in cold weather conditions. We suggest talking to your engine builder or tuner before making the change, or you can call our Turner Motorsport sales staff to discuss what modifications have been made to your vehicle and see if these plugs are right for you!
Show More Show Less
Bremmen Parts - Corporate Logo
T#:14915983
Part#: 11127565284M
In Stock
$ 418.99 USD
Free Shipping on orders $49 and up
This aluminum valve cover from Bremmen is designed to eliminate issues stemming from brittle plastic valve covers. Cracked or warped valve covers can cause oil leaks, engine fault codes, vacuum leaks, and misfires.
Show More Show Less
Packaged by Turner - Corporate Logo
T#:637846
Part#: 1142753729312KT1
Ships in 2 Business Days
Sale - Save 4% $ 79.99
$ 76.71 USD
Free Shipping
Sale - Save 4% $ 79.99
$ 76.71 USD
Free Shipping
Over time gaskets become dry and brittle allowing oil to leak in your engine compartment. Replace this gasket and stop having to top off your oil every month. A common source of leaks on the N54/55 is the gaskets between the the thermostat plate and filter housing, and also the filter housing to engine block.
Show More Show Less


Arc Terminator - Corporate Logo
T#:28304531
Part#: EKP-HW06-F-SF
Ships in 1 Business Day
$ 209.99 USD
Free Shipping on orders $49 and up
Arc Terminator now offers upgraded EKMP3 Fuel Pump Control Modules featuring a 22 Amp INCREASE in maximum current capacity over an OEM EKPM3. This allows for more current to be supplied to your low-pressure fuel pump (LPFP) without risking thermal overload, which often leads to your car shutting down. This means that you won't have to worry about being stranded on the side of the road while waiting for your EKP module to cool down, especially when you've installed a large low-pressure fuel pump such as a Walbro 525lph. How does the integrated automatic cooling work? The integrated automatic cooling works by us installing a thermal activation switch directly onto the new half-bridge IC. When the half-bridge IC reaches 50°C, the 40mm fan will turn on and keep running until the IC is below 50°C or until the EKMP3 stops receiving power. Can I run more than 1 low-pressure fuel pump off of this module? No. We do not recommend that you use more than one low-pressure fuel pump with any EKP module due to the factory wiring supplying power to the EKP Module is only 12 gauge, which is not rated for the type of power demands that two low-pressure fuel pumps would require.
Show More Show Less
Genuine BMW - Corporate Logo
T#:348491
Part#: 12138616153
In Stock
Sale - Save 5% $ 78.41
$ 74.49 USD
Free Shipping
Sale - Save 5% $ 78.41
$ 74.49 USD
Free Shipping
Ignition coils are key to the efficiency and performance of your BMW. With a faulty coil the spark plug is not burning the air/fuel mixture properly and that can lead to problems anywhere in the engine and exhaust (including catalytic converters and O2 sensors).
Show More Show Less