BMW Engine Parts

E9X M3 Performance Underdrive Pulley Kit

T#:593749

Part#: 10.00.011

Ships on Nov 2, 2026

$ 349.00 USD

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Free additional power to your M3’s rear wheels without sacrificing or compromising your BMW’s reliability. Machined from 6061-T6 aerospace aluminum, Macht Schnell Performance Underdrive Pulleys are strong as well as lightweight to limit parasitic drag from the accessories within a moderate level for maximum performance on or off the track. After machining and engraving, pulleys are then T3 hard anodized for additional strength, anti-corrosion & wear resistance. Our DualDrive design replaces the Crank Accessory & Power Steering Pulleys, resulting in an additional 9-14 HP and 7-9ft. lbs TQ gain for the M3. Gains are due to a reduction in power required to turn accessories; an increase in accessories lifespan due to lower speed will also result. All factory harmonics/balancing are undisturbed. Macht Schnell Performance Underdrive Pulleys have no negative effect on accessory operation and comes fully equipped with new belts. Already have this kit and need new belts? See T#14491 and T#14489 Performance Underdrive Pulleys Features: DualDrive design allows maximum performance, with minor effect on accessory speed Proper cooling temperatures are retained at proper levels on or off the track Maintains proper alternator speed, allowing sustained levels to sensitive control modules Machined from 6061-T6 aerospace aluminum T3 Hard-Anodized for maximum strength and corrosion/wear resistance No affects to crankshaft dampening or harmonics Simple bolt-on installation

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AutoTecknic Dry Carbon Competition Oil Cap Cover - Type 1 - For Vario...

T#:39971047

Part#: BM-0007

In Stock

$ 64.99 USD

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$ 64.99 USD

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a precision-engineered, lightweight dry carbon fiber upgrade designed to enhance the engine bay of compatible BMW models with an aggressive motorsport look and easy OEM-style installation.

AutoTecknic Dry Carbon Charge Cooler Tank Cap Cover - Gloss Finish ...

T#:39971051

Part#: BM-0032

In Stock

$ 64.99

This product was last offered at the strikethrough price on
09-16-2026

$ 57.99 USD

Limited Qty Sale

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$ 64.99

This product was last offered at the strikethrough price on
09-16-2026

$ 57.99 USD

Limited Qty Sale

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A premium dry carbon fiber engine bay upgrade that enhances the performance styling of compatible BMW models with a sleek, UV-resistant finish and easy OEM-style installation.

AutoTecknic Dry Carbon Fiber Engine Cover - Version 2 - BMW G80 M3, G...

T#:46203538

Part#: ATK-BM-0408-V2

Ships in 7 Business Days

$ 795.00 USD

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$ 795.00 USD

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Transform your G8X engine bay into a true centerpiece with the AutoTecknic Version II Dry Carbon Fiber Engine Cover. Expertly crafted using pre-preg dry carbon and cured in an autoclave, this cover offers a lightweight yet durable upgrade that elevates both performance and aesthetics. The precision 3K twill weave carbon delivers a flawless, uniform pattern, enhanced by a deep gloss UV-resistant clear coat for long-lasting protection against fading and yellowing. What sets this Version II cover apart is the bold tri-colored ///M-inspired stripes, perfectly integrated into the design. Combined with the iconic ///M emblem, the cover captures BMW’s motorsport heritage while adding a modern, aggressive edge to your engine bay. Every detail is engineered for a seamless OEM fit—simply transfer the factory M emblem for a complete installation. Upgrade your G80 M3 or G82/ G83 M4 with this stunning centerpiece and let your engine bay reflect the same dynamic spirit as the car itself.

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AutoTecknic - Carbon Competition Fuel Cap Cover - Various BMW and MIN...

T#:39971046

Part#: BM-0006-BCG

In Stock

$ 65.00 USD

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$ 65.00 USD

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AutoTecknic - Carbon Competition Fuel Cap Cover - Various BMW and MINI Models is a premium exterior upgrade crafted from genuine carbon fiber, designed to enhance the aggressive styling and performance aesthetic of compatible BMW and MINI vehicles with an easy, OEM-fit installation.

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Water Pump/Alternator Accessory Belt Service Kit w/ Kevlar Reinforced...

10X Entries Into Our F80 M3 Sweepstakes

T#:22097556

Part#: 6PK1548TKT

Ships on Feb 23, 2027

$ 129.99 USD

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$ 129.99 USD

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Eliminate your squeaking accessory belt pulley and cracked drive belt with this upgraded accessory belt service kit! This kit includes the ECS Kevlar Reinforced Accessory Belt, tensioner assembly, and your idler pulley. ECS Tuning's Red Kevlar Accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. Kevlar-reinforced belts experience less elongation over time minimizing the amount of belt adjustment needed as well as offering a higher shock and impact resistance compared to OEM-style belts. Refreshing the rollers and/or tensioners simultaneously is a great way to ensure all vital components of your drive belt system are functioning optimally for years to come!

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HARD Motorsport BMW Oil Cooler Fitting Adapter Plate - E36 E46 E82 E9...

T#:593621

Part#: OILADPTR

Special Order: No Guaranteed ETA

$ 62.00 USD

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$ 62.00 USD

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The HARD Motorsport Oil Cooler Fitting Adaptor Plate allows you to upgrade your oil cooler lines to a flexible braided hose that can be routed in any direction, giving the ability to upgrade or relocate your oil cooler. This kit replaces the oil cooler hard lines with two -10 AN fittings, mounting bracket, O-rings, and adaptor bracket, which is CNC machined stainless steel.

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E9X 335i/xi N54 Stage 1+ Turner Power Package

10X Entries Into Our F80 M3 Sweepstakes

T#:224335

Part#: TMS224335

Ships in 3 Business Days

$ 1,684.00 USD

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$ 1,684.00 USD

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2007-2010 E90/E92/E93 335i N54 Stage 1+ Performance Package
Peak Power Gain*: up to 103hp / 108ft-lbs
+ aFe Pro5R Dual Cone Intake
+ Wagner Front Mount Intercooler
+ Cobb AccessPort programmer

More power = more heat. It's easy to make more power one time but to continue making that power consistently requires careful planning and design. With the additional boost the air entering the engine is also warmer, making the intercooler more important than ever. In testing, the stock BMW intercooler was quickly overwhelmed and cannot keep the intake air cool enough. The engine computer recognizes that and dials back the boost. A more efficient intercooler will keep boost levels up, delivering consistently higher boost levels. The Stage 1+ package includes a Wagner Evo I plug and play intercooler upgrade. We get great feedback from our customers and technicians about the Wagner FMIC - it's a direct bolt in part using all of the factory piping and it offers 85% more surface area than the factory intercooler.

The aFe Dual Cone intake and Cobb Accessport programmer complete the Stage 1+ package. The larger surface area of the aFe cone filters allows more air to enter the engine - creating more power and torque, a richer engine sound, and better throttle response. The kit is supplied complete with aFe Pro5R filters, mounting shield, intake tubes, sealing materials, hardware, and install instructions. The torque increase and sound from the open intake from low-mid RPM is sensational.

The Cobb software tool puts multiple tuning stages in the palm of your hand. Our Stage 1+ package lines up with the Cobb Stage 1 tuning maps for an intake and FMIC (91 or 93+ octane fuel). Simply download the Stage 1+ map from the Cobb website, plug it in, and install. Select different maps for other upgrades, throttle settings, octane ratings, valet mode, or revert back to stock! If you're moving up in Stages simply download a new file from the Cobb website and update your AccessPort programmer! The AccessPort triples as a diagnostic tester/reader and a data logger. It's the most feature-packed programmer on the market today.

We have taken the guesswork out of choosing the best upgrades for the N54 engine. If you follow the upgrade path we have laid out you will have very satisfying and reliable results. The addition of the larger intercooler makes Stage 1 more enjoyable and won't let you down at the track or dragstrip. * Note that peak power gains are quoted remain the same as Stage 1 but the cooler intake air means there is less of a chance the engine computer will cut power from heatsoak.

This item fits the following BMWs:
2007-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
2007-2010 E92 BMW 335i 335is* 335xi 335i xDrive - Coupe
2007-2010 E93 BMW 335i - Convertible
* 335is horsepower gains are lower due to the factory power boost in the "is" package

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T#:39295568

Part#: BM-0385

Ships in 7 Business Days

$ 495.00 USD

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$ 495.00 USD

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Designed for BMW F95 X5M and F96 X6M owners seeking an elevated under-hood appearance, the AutoTecknic Dry Carbon Engine Cover delivers premium styling and race-inspired refinement.

T#:39497962

Part#: BM-0707

Ships in 7 Business Days

$ 549.99 USD

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$ 549.99 USD

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Turner Motorsport offers this high-quality AutoTecknic Pre-Preg Carbon Engine Cover, ensuring BMW X3M and X4M owners can upgrade their vehicle with a refined, performance-oriented aesthetic.

Autotecknic Carbon Fiber Engine Cover - A90 Supra

T#:21275553

Part#: ATK-TO-0407

Ships in 7 Business Days

$ 550.00 USD

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$ 550.00 USD

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Carbon fiber is a staple in the performance world and has been incorporated into motorsports since the early 80s. Over time companies have taken it upon themselves to create new carbon products to add to your car that may have not been originally available. Autotecknic is no different. If you're looking for a carbon addition that has been made to the highest standards with premium materials, then Autotecknic's line of carbon additions is your one-stop shop. Stand out from the rest when you open your hood with this full carbon fiber engine cover for the A90 Supra! Dry carbon fiber's name comes from its manufacturing process. Dry carbon fiber is formed by using a "pre-preg" or impregnated piece of carbon materials. This carbon is first placed into a mold, and then into a sealed vacuum (autoclave) to properly cure. This method creates the least amount of waste and forms a lighter version of carbon than the “wet” method. The autoclave vacuuming process of making dry carbon means fewer pinholes and virtually no air pockets in the carbon. Dry carbon is the highest-quality version of carbon fiber products that are produced.

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AUTOTECKNIC Dry Carbon Fiber Engine Cover - G87 M2

T#:21045545

Part#: ATK-BM-0408-G87

Ships in 7 Business Days

$ 795.00 USD

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$ 795.00 USD

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AutoTecknic's dry carbon fiber engine cover features high-quality carbon fiber that aesthetically improves the engine bay appearance. This engine cover is made of 3K twill weave pre-preg carbon fiber that creates the beauty of a uniform pattern that only dry carbon could achieve.

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AutoTecknic Dry Carbon Competition Oil Cap Cover - Type 2 - For Vario...

T#:39971048

Part#: BM-0008

Ships in 7 Business Days

$ 64.99 USD

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$ 64.99 USD

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A precision-crafted dry carbon fiber upgrade that enhances the engine bay of compatible BMW and MINI vehicles with a lightweight, motorsport-inspired design and easy OEM-style installation

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Sub-Categories

E9X M3 Performance Underdrive Pulley Kit

AutoTecknic Dry Carbon Competition Oil Cap Cover - Type 1 - For Vario...

AutoTecknic Dry Carbon Charge Cooler Tank Cap Cover - Gloss Finish ...

AutoTecknic Dry Carbon Fiber Engine Cover - Version 2 - BMW G80 M3, G...

AutoTecknic - Carbon Competition Fuel Cap Cover - Various BMW and MIN...

Water Pump/Alternator Accessory Belt Service Kit w/ Kevlar Reinforced...

HARD Motorsport BMW Oil Cooler Fitting Adapter Plate - E36 E46 E82 E9...

E9X 335i/xi N54 Stage 1+ Turner Power Package

AutoTecknic Dry Carbon ECU Battery Terminal Cover - Gloss Finish - G8...

AUTOTECKNIC Dry Carbon Competition Fuel Cap Cover

AutoTecknic Dry Carbon V2 Engine Bay Trim Set - G80 M3 | G82/ G83 M4 ...

Autotecknic Dry Carbon Fiber Engine Cover - MkV Supra

AutoTecknic Dry Carbon Engine Cover - F95 X5M | F96 X6M

AutoTecknic Dry Carbon ECU Battery Terminal Cover (Satin Finish) G87 ...

AUTOTECKNIC Dry Carbon Fiber Battery Terminal Cover - G87 M2 ...

Autotecknic Dry Carbon Fiber Engine Cover - G87 M2

AUTOTECKNIC Dry Carbon Competition Oil Cap Cover - G42 2-SERIES COUPE...

AUTOTECKNIC Dry Carbon Competition Oil Cap Cover - G87 M2

AutoTecknic Vacuumed Carbon Fiber Engine Cover - F80 M3 F82 M4 ...

AutoTecknic Pre-Preg Carbon Engine Cover - F97 X3M | F98 X4M ...

Autotecknic Carbon Fiber Engine Cover - A90 Supra

AUTOTECKNIC Dry Carbon Fiber Engine Cover - G87 M2

AutoTecknic Dry Carbon Competition Oil Cap Cover - Type 2 - For Vario...

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