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Bosch - Corporate Logo
T#:579630
Part#: 0438170007
Ships in 1 Business Day
$ 348.99

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

$ 303.99 USD
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$ 303.99 USD
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Located near the fuel pump
Active Autowerke - Corporate Logo
T#:28504210
Part#: 12-005
Ships in 3 Business Days
5% off MSRP $ 14,125.00

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

$ 13,418.99 USD
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5% off MSRP
$ 14,125.00

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

$ 13,418.99 USD
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Active Autowerke, established in 1981, has become a highly regarded name in the BMW community, known for their top-notch power solutions for various BMW models. This supercharger kit they offer packs a punch, capable of generating over 400 horsepower for your BMW while ensuring the vehicle's structural integrity and suitability for daily driving. What sets this kit apart is the Rotrex supercharger's design, featuring a traction drive system that eliminates the lag commonly associated with other centrifugal superchargers. This results in a smooth and reliable power delivery experience.

Key components of the kit include the Rotrex C38-92 trim supercharger, an Active Autowerke front-mount air-to-air intercooler, a high-flow fuel pump, supercharger brackets, pulleys, and belts, six high-flow fuel injectors, an Active Autowerke air filter, dyno-tuned software, and all necessary mounting hardware, plumbing, hoses, and clamps. Additionally, the kit comes with an illustrated instruction manual and installation guide, ensuring a straightforward installation process. Active Autowerke also offers a 2-year warranty along with free technical support for added peace of mind.

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Continental - Corporate Logo
T#:33619
Part#: 11281733708
Ships in 6 Business Days
$ 16.21 USD
Free Shipping on orders $49 and up
OEM BMW RIBBED V-BELT

OTC - Corporate Logo
T#:585065
Part#: OTC5605
Ships in 6 Business Days
$ 349.99 USD
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$ 349.99 USD
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The only way to check compression is with a compression tester like this one.

Corteco - Corporate Logo
T#:594935
Part#: 22116785712
Ships in 1 Business Day
$ 127.81

This product was last offered at the strikethrough price on
08-07-2026

$ 120.99 USD
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$ 120.99 USD
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Replacement Engine Mount from Corteco
Bosch - Corporate Logo
T#:639153
Part#: 13517804409
In Stock
$ 1,521.76 USD
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$ 1,521.76 USD
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A failing high pressure fuel pump (HPFP) can result in hard starts, sputtering, no starts, decreased power, and more. Replace your faulty fuel pump with this Genuine BMW pump to ensure many years of reliable operation.
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Victor Reinz - Corporate Logo
T#:593894
Part#: 11131315154
Ships in 1 Business Day
$ 25.99 USD
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Addresses leaks from the mating point of oil pan and engine block To be replaced each time the oil pan is removed. Be sure both sealing surfaces are free of debris as this will not allow for a good seal.
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King - Corporate Logo
T#:16707423
Part#: CR6877XP
In Stock at Vendor
3% off MSRP $ 309.99

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

$ 300.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 309.99

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

$ 300.99 USD
Free Shipping on orders $49 and up
King's Racing Line of Performance Engine Bearings are for enthusiasts looking for an upgraded, coated connecting rod bearing to replace their OE bearings with. Constructed of a Silver base, these bearings are coated in a polymer-based coating to create a thermal barrier between your connecting rods and crankshaft. Complete Set of Bearing Shells
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Victor Reinz - Corporate Logo
T#:593866
Part#: 11617830104
Ships in 1 Business Day
$ 11.99 USD
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Placed between the intake hose and air box. This rubber gasket is found between the intake hose and air box.

NRW Design - Corporate Logo
T#:42436704
Part#: S85SPTK
Ships in 3 Business Days
$ 249.99 USD
Free Shipping on orders $49 and up
BMW owners can ensure better sealing, eliminate the risk of oil leaks into the spark plug wells, and maintain peak ignition performance.
S55 Billet Motor Mount Inserts
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:597677
Part#: VTT-INSERT-2
Ships in 10 Business Days
$ 178.99 USD
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$ 178.99 USD
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Instead of completely replacing the mount, simply make a billet aluminum insert for them. This leaves the feel of the factory mount in place but stiffens them up quite a bit removing unwanted engine movement without rattling your teeth out or emptying your wallet.
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BorgWarner - Corporate Logo
T#:591042
Part#: 11657636423
Ships in 1 Business Day
$ 2,264.99 USD
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$ 2,264.99 USD
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Replace your faulty turbo with a brand new unit from BorgWarner to restore lost power and fuel efficiency.


Corteco - Corporate Logo
T#:586900
Part#: 11238638534
Ships in 1 Business Day
$ 545.99 USD
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$ 545.99 USD
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This is the main crankshaft pulley commonly referred to as the harmonic balancer.
Ignition Projects - Corporate Logo
T#:1637693
Part#: IP-A122413
Ships in 5 Business Days
$ 695.00 USD
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$ 695.00 USD
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Ignition Projects is a Southern California based company that specializes in innovative ignitions products. Their mission is to develop stronger ignition systems in order to optimize engine performance and improve emmissions/consumption. All of their products are developed and manufactured here in Tustin, CA, right here in the US!
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Level 3 Timing Chain Kit - M62TU E39, E38
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:5403242
Part#: 11311435026TMSKT
In Stock
$ 1,261.60 USD
$ 1,261.60 USD
Contains all required components for replacement of timing chain guide rails using quality OE parts Timing chain guides are a weak spot in the otherwise bulletproof M62. Common symptoms of worn guides can include excessive vibration or “slap” from the timing chain, and abrasive plastic particles in the oil. Symptoms typically begin to surface between 80,000 and 100,000 miles. If left untouched, worn guides let the timing chain jump out of time, leaving you with a potentially damaged head and larger repair costs. Our chain kit has been assembled for your peace of mind using quality OE parts. From new timing chain guides to a replacement oil pan drain plug, this kit has you covered to assure that all the needed parts are on hand and ready to install.
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In-Tank Fuel Pump - E70
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:593020
Part#: 16117195464
Ships in 1 Business Day
$ 395.99 USD
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$ 395.99 USD
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Fuel pumps unfortunately tend to go without warning, and when they do its always seems to be when you least expected it and in the most inconvenient places. If your vehicle is of higher mileage, ECS Tuning recommends replacing the fuel pump right away (typically around 80,000 or so), before the fuel pump fails and your left stranded on the side of the road.
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Victor Reinz - Corporate Logo
T#:373816
Part#: 11137548031
Ships in 1 Business Day
$ 53.99

This product was last offered at the strikethrough price on
05-07-2026

$ 52.99 USD
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$ 52.99 USD
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Gasket between oil pan and engine block
Karlyn - Corporate Logo
T#:373952
Part#: 12121733020
Ships in 1 Business Day
$ 329.65 USD
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$ 329.65 USD
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For cylinders 1-6

OEM Febi Accessory Belt Tensioner Assembly - BMW N20 2.0L
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:38419107
Part#: 11287594969
Ships in 1 Business Day
Sale - Save 4% $ 78.99

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

$ 76.16 USD
Free Shipping on orders $49 and up
Sale - Save 4%
$ 78.99

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

$ 76.16 USD
Free Shipping on orders $49 and up
This is the main belt tensioner for the accessory belt.
Elring Head Gasket Set - E30 M3
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:593547
Part#: 11121316992
Ships in 1 Business Day
$ 362.99

This product was last offered at the strikethrough price on
05-07-2026

$ 352.99 USD
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$ 352.99 USD
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Includes all the gaskets and seals needed when rebuilding the S14 cylinder head, along with the head gasket. This set of gaskets is a both a time and money saver. It includes all of the commonly replaced gaskets, seals, and o-rings when performing this overhaul. Having these on hand instead of chasing them down at the last minute will save you time, money, and frustration. With this area of the engine apart you're going to want or need to replace these items anyway to ensure it's free of fluid and vacuum leaks. This is especially important because some states have very strict emissions regulations and vacuum and oil leaks can lead to failed inspections tests. On newer cars this can also create issues in the on-board diagnostics system. Even if you're not pulling the head this set includes so many valuable parts you'll want to keep this on hand to use for spares. ​This item fits the following BMWs: 1987-1991 E30 BMW M3
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Victor Reinz - Corporate Logo
T#:596097
Part#: 11129064467
Ships in 1 Business Day
$ 412.41

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

$ 355.47 USD
Free Shipping on orders $49 and up
$ 355.47 USD
Free Shipping on orders $49 and up

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
Corteco - Corporate Logo
T#:593104
Part#: 22116794471
Ships in 1 Business Day
$ 112.63 USD
Free Shipping on orders $49 and up
Don't settle for engine slop from worn out mounts
Victor Reinz - Corporate Logo
T#:288
Part#: 11121316992
Ships in 2 Business Days
$ 271.99 USD
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$ 271.99 USD
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Includes all the gaskets and seals needed when rebuilding the S14 cylinder head, along with the head gasket. This set of gaskets is a both a time and money saver. It includes all of the commonly replaced gaskets, seals, and o-rings when performing this overhaul. Having these on hand instead of chasing them down at the last minute will save you time, money, and frustration. With this area of the engine apart you're going to want or need to replace these items anyway to ensure it's free of fluid and vacuum leaks. This is especially important because some states have very strict emissions regulations and vacuum and oil leaks can lead to failed inspections tests. On newer cars this can also create issues in the on-board diagnostics system. Even if you're not pulling the head this set includes so many valuable parts you'll want to keep this on hand to use for spares. If you drive a European vehicle, chances are high your vehicle came equipped with one or more Victor Reinz gaskets. Choose OE quality VR gaskets and seals and do the job right the first time. This item fits the following BMWs: 1987-1991 E30 BMW M3
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Pure Turbos - Corporate Logo
T#:588598
Part#: A90P800K
Ships in 4 Business Days
$ 4,466.99

This product was last offered at the strikethrough price on
07-16-2026

Starting at $ 4,094.00 USD
Free Shipping on orders $49 and up
Starting at $ 4,094.00 USD
Free Shipping on orders $49 and up
Pure Turbos have changed the game yet again with the Pure800 Turbo upgrade kit for the A90 Toyota Supra. This is dollar for dollar the best upgrade you can do, and will dramatically transform how the car feels and performs.
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ARP - Corporate Logo
T#:28537458
Part#: ARP-MSK-S14
Ships in 3 Business Days
$ 119.99 USD
Free Shipping on orders $49 and up
This ARP Main Stud Kit is designed to replace BMW 11111735525 for the S14 B20, S14B23, S14B25, S14B27 engines found in the E30 M3. One significant advantage of these main studs is their ability to prevent main cap walk, which can occur when the main caps shift or move out of position, potentially causing damage to the engine. In addition, ARP Main Studs can safeguard the threads of your engine block, providing an extra layer of protection against potential damage. When opting for main studs instead of factory bolts, it's important to note that the engine builder should mic the bores. Using studs may require a line hone to ensure proper fitment and alignment. A line hone is a machining process that can be used to resize and reshape the main bearing bores, ensuring that they are perfectly round and concentric. This is crucial for ensuring proper oil clearance and preventing premature bearing wear. By mic'ing the bores and performing a line hone if necessary, engine builders can ensure that the main studs are installed correctly and that the engine will perform reliably and at its best.
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BMW Valve Cover Gasket
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:15412491
Part#: 11128636546
Ships in 1 Business Day
$ 54.99

This product was last offered at the strikethrough price on
04-26-2026

$ 43.99 USD
Free Shipping on orders $49 and up
$ 43.99 USD
Free Shipping on orders $49 and up
Keeping the oil inside your engine is extremely important to performance. Between oil change intervals, your oil can dip to dangerous levels if there is a leak you may not be aware of. The valve cover is an extremely common place for this to happen. Years of exposure to extreme temperature change degrades the gaskets and causes failure. Replace yours to keep your engine oil in your vehicle.
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MANLEY - Corporate Logo
T#:17073600
Part#: 646000CE-6
Back Ordered
8% off MSRP $ 1,423.99

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

$ 1,309.99 USD
8% off MSRP
$ 1,423.99

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

$ 1,309.99 USD

Hella - Corporate Logo
T#:592708
Part#: 3001651
Ships in 1 Business Day
$ 143.99

This product was last offered at the strikethrough price on
05-07-2026

$ 124.99 USD
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$ 124.99 USD
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Get noticed with this air horn kit from Hella!
URO Premium - Corporate Logo
T#:1918449
Part#: 11537558900
Ships in 1 Business Day
$ 70.99

This product was last offered at the strikethrough price on
10-18-2026

$ 64.89 USD
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$ 64.89 USD
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Comes with a lifetime warranty

Crankcase Cover Gasket Set
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:15180791
Part#: 11110421208
Ships in 1 Business Day
$ 198.99

This product was last offered at the strikethrough price on
05-07-2026

$ 193.99 USD
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$ 193.99 USD
Free Shipping on orders $49 and up
This kit includes every gasket and seal you will need to rebuild the bottom end of your engine. Worry not about having to gather all these supplies yourself when you can get them all in one spot!

BMW Cylinder Head Bolt Set
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:15247118
Part#: 11127838831
Ships in 1 Business Day
$ 60.99

This product was last offered at the strikethrough price on
05-08-2026

$ 54.99 USD
Free Shipping on orders $49 and up
$ 54.99 USD
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When replacing a head gasket or performing maintenance that requires the removal of the head, it is advised to replace the cylinder head bolts as they are torque to yield bolts that allow for one time use only.
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Performance Tool - Corporate Logo
T#:1809133
Part#: W80575
Ships in 1 Business Day
$ 17.62 USD
Free Shipping on orders $49 and up
Comfortable vinyl grip handles.
Bosch - Corporate Logo
T#:579628
Part#: 437502006
Ships in 1 Business Day
$ 73.99

This product was last offered at the strikethrough price on
05-07-2026

$ 63.99 USD
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$ 63.99 USD
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Replace with bushing/seal 13531269477. Bosch fuel injectors provide the precision manufacturing required for advanced fuel injection systems. 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!
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Mahle Motorsports - Corporate Logo
T#:2928993
Part#: 197859542
Ships in 1 Business Day
$ 1,787.99 USD
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$ 1,787.99 USD
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Forged, 4032. Get the performance and reliability your S85 needs with MAHLE Motorsports PowerPak Piston Kit. Replacing the weaker factory cast aluminum pistons with the strength and durability of a forged piston.
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JE Piston - Corporate Logo
T#:33713123
Part#: 297170
Back Ordered
$ 1,324.99 USD
Free Shipping on orders $49 and up
JE Pistons Forged Piston Set – BMW S52B32US – 9:1 Compression Ratio Elevate your BMW S52B32US engine with this JE Pistons forged piston kit, designed for durability and performance. 9:1 Compression Ratio: Optimized for turbocharged or supercharged applications, allowing for higher boost without compromising reliability. Forged Aluminum: Lightweight and strong, engineered to withstand high pressures and temperatures. Precision Fit: Tailored for seamless installation in the S52B32US engine. Ideal for enthusiasts looking to boost horsepower and performance, this piston kit ensures exceptional durability and reliability.
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Engine Mount - Right
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:373116
Part#: 22116761090
Ships in 1 Business Day
$ 77.99 USD
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$ 77.99 USD
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Does not include mounting hardware
Febi Crankcase Ventilation Hose - E34
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:381678
Part#: 11151708801
Ships in 1 Business Day
$ 11.99

This product was last offered at the strikethrough price on
05-07-2026

$ 9.99 USD
Free Shipping on orders $49 and up
$ 9.99 USD
Free Shipping on orders $49 and up
Prone to cracking and breaking.

Billet N54 Valve Cover - N54
2X Entries Into Our F80 M3 Sweepstakes
Vargas Turbo Technologies - Corporate Logo
T#:557949
Part#: VTTVCOVBCR
Ships in 10 Business Days
Starting at $ 1,448.99 USD
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Starting at $ 1,448.99 USD
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The N54 valve cover, while not a terrible design, has it's share of flaws. Most owners have had to replace this part over time as it can crack for seemingly no reason. Additionally, the stock valve cover has its limitations for vacuum and PCV connectivity. 

VTT is proud to offer a ground-up system designed to give the end user complete control over their valve cover/ PCV set up. Tired of being told you will run two -10 lines from your VC to your Catch Can? Now you can run them any way you want! Including complete VTA, oil cap one-way breather, or whatever else you may need. This i a true solution that solves many plumbing headaches. 

Accessability options aside, this part looks magnificent. CNC Machined and anodized in your choice or Red, Black, or Clear, this valve cover is sure to turn heads!

Details:

  • 100% CNC 6061-T6 Aircraft aluminum construction
  • Anodized in a variety of colors
  • Custom logo available on the cap
  • Lightweight; 9.7 lbs. (compared to 7.9 lbs for a stock cover - only 1.8 lbs difference)
  • Gives the end user true variety for setting up their Valve Cover and PCV System

This part fits the following BMW engines:
2006-2013 N54



 

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Bosch - Corporate Logo
T#:583822
Part#: 61311243207
In Stock at Vendor
$ 4.99 USD
Free Shipping on orders $49 and up
This is a brand new starter relay from OEM supplier Bosch. If you have replaced your starter and have ruled out every other issue, this relay could restore your starters operation and get your car back up and running.
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King - Corporate Logo
T#:14982187
Part#: MB637XP
Ships in 6 Business Days
13% off MSRP $ 662.99

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

$ 574.99 USD
Free Shipping on orders $49 and up
13% off MSRP
$ 662.99

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

$ 574.99 USD
Free Shipping on orders $49 and up
King XP & XPC race bearings have already led to new records on the race track. King’s ability to meet the continuously changing and challenging demands of the racing industry with our unique materials and geometric features are a testament to the quality and reliability of our bearings, and reinforces our commitment to developing the ultimate race bearings. The King Racing line contains engine bearings for various segments. Equipped with advanced materials and construction techniques, King Racing bearings extend the limits of power, performance, and durability. By analyzing the specific needs of race engines, we have developed unique features including: pMaxBlack™ – metal construction, U-Groove™, ExcentriX™, ElliptiX™ and RadiaLock™
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King - Corporate Logo
T#:597153
Part#: MB637CA
Ships in 6 Business Days
13% off MSRP $ 435.99

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

$ 377.99 USD
Free Shipping
13% off MSRP
$ 435.99

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

$ 377.99 USD
Free Shipping
These King SI-Series bearings are recommended for OE applications. These bearings are designed for aftermarket gasoline or diesel engine rebuilding and performance engines with OE crankshafts. These King SI-Series bearings have an improved crankshaft finish for reducing microscopic ferrite peaks on improperly ground or polished nodular cast iron crankshafts. These King SI-Series bearings feature improved oil clearance to reduce wear and increase engine life, which in turn reduces operating noise, vibration, and excess oil flow.
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Mishimoto - Corporate Logo
T#:378414
Part#: MMOCUL
In Stock at Vendor
$ 536.99 USD
Free Shipping
$ 536.99 USD
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Even under optimum driving conditions increased oil temperatures will cause a drop in pressure and will decrease the ability for your engine to be properly lubricated. With this new oil cooler, you can keep your oil temperatures down for optimum driving conditions. The kit includes four-feet of stainless braided line, adapter fittings, and oil filter sandwich adapter. Rows: 19 Overall Dimensions: 13" x 5.5" x 2" Core Dimensions: 11.25" x 5.5" x 2" Braided Hoses: 4ft .75 inch & 4ft 9 inch Braided Hose Fittings: -10AN Sandwich Plate Fittings: -10AN WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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Valeo Brand New Alternator - E89 Z4 M Coupe/Roadster
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:379218
Part#: 12317837691KT
Back Ordered
$ 378.99 USD
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$ 378.99 USD
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This is a brand new Valeo alternator. BMW Alternators are built especially for extremes of heat, cold and high demand. Your BMW deserves nothing less than the best, which is why an OEM Valeo alternator is the best option. BMW alternators are built to last using the highest quality materials and the most technologically advanced processes. All alternator parts are 100% factory tested to assure that they meet or exceed original equipment specifications. And every alternator is fully load tested to guarantee compliance with BMW's strict performance specifications. 

No core charge!

Fits the following BMW Chassis:

E89 BMW Z4 M Coupe, M Roadster

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Condor Speed Shop - Corporate Logo
T#:577966
Part#: E30_M10M_TRANS
In Stock at Vendor
$ 115.00 USD
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$ 115.00 USD
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These solid UHMW motor mounts are made specifically for M10 powered e30s. Under hard braking the stock mounts allow the M10 to lean forward. These solid UHMW replacement mounts stiffen the engine and drivetrain, dramatically changing the responsiveness of your 318. These solid UHMW motor mounts are a direct replacement for OEM rubber motor mounts. UHMW is an excellent general-purpose plastic with a unique combination of wear and corrosion resistance, low friction surface and impact strength. It is resistant to chemical attack and moisture absorption and retains key physical properties to -30 C. Includes solid transmission mounts as well.
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DeatschWerks Performance Fuel Injector Set - 440cc
For Custom Applications - Will require additional tuning or modifications.
DeatschWerks - Corporate Logo
T#:6151331
Part#: 18U-09-0440-4
Ships in 1 Business Day
$ 359.00 USD
Free Shipping on orders $49 and up
For tuners and engine builders, the DeatschWerks 18U-09-0440-4 represents a highly predictable and well-characterized fueling solution.
King - Corporate Logo
T#:37858363
Part#: CR6853XP
In Stock at Vendor
33% off MSRP $ 422.99

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

$ 283.99 USD
Free Shipping on orders $49 and up
33% off MSRP
$ 422.99

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

$ 283.99 USD
Free Shipping on orders $49 and up


Bosch - Corporate Logo
T#:3454
Part#: 11781310838
Ships in 1 day
$ 146.47

This product was last offered at the strikethrough price on
08-03-2026

$ 133.99 USD
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$ 133.99 USD
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A new oxygen sensor can improve driveability and lengthen engine life. Ultimately, you achieve a smoother running engine that is more fuel efficient. Feedback from the oxygen sensor provides closed-loop control of the injected quantity of fuel for optimum air-fuel mixture, enabling virtually complete combustion to take place. Contaminants in gas and certain atmospheric conditions can drastically shorten the life of any oxygen sensor, therefore they should be checked with every periodic maintenance and changed if necessary.

This is the OEM Bosch oxygen sensor for E30 BMW's with the S14 engine. This sensor is mounted in the manifold before the catalytic converter. OEM replacement for BMW # 11781310838.

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!

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Mahle Motorsports - Corporate Logo
T#:2928972
Part#: 197832225
Back Ordered
$ 1,088.99 USD
Free Shipping
$ 1,088.99 USD
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BMW N54 3.0L MAHLE Forged Piston Kit 84.50mm delivers exceptional performance and reliability for BMW engines. This high-quality piston kit is designed to replace the weaker factory cast aluminum pistons with robust forged pistons, enhancing durability and heat tolerance for extreme engine conditions.

  • Enhanced Strength: Forged from 2618 aluminum, these pistons are more resistant to extreme heat, detonation, and high pressure, providing superior performance.
  • Precision Specifications:
    • Bore: 84.50mm
    • Stroke: 89.6mm
    • Rod: 145.05mm
    • CH: 31.7mm
    • Piston Style: Dish with 4 valve reliefs
    • Crown Volume: 17.2cc
    • Piston Mass: 314g
    • Pin Diameter: 22mm
    • Pin Style: Floating
  • Complete Kit: Includes pistons, pins, clips, and rings (1.0mm, 1.2mm, 2.8mm thickness).
  • Durable Coatings: Features phosphate, Grafal, and hard anodized top ring groove for added longevity.
  • Sold as a Set: Comes as a set of 6 pistons.

MAHLE Motorsport's PowerPak and PowerPak+ piston kits are engineered for both high-performance and everyday driving, offering a reliable upgrade for BMW engines. With over 95 years of performance experience, MAHLE Motorsport provides advanced features and superior quality for your engine build.

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