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BMW Engine Parts

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

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Macht Schnell - Corporate Logo
T#:593749
Part#: 10.00.011
Ships in 4 Business Days
$ 349.00 USD
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$ 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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OEM Valeo Alternator - 180amp - E9X M3 S65
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377508
Part#: 12317837981
In Stock
$ 630.99

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

$ 404.99 USD
Free Shipping
$ 404.99 USD
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This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!
OEM Starter Motor - E46 M3 2001-2006
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:2988
Part#: 12417835735
In Stock
$ 400.99

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

$ 293.99 USD
Free Shipping
$ 293.99 USD
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This is the starter motor for BMW E46 M3 2001-2006 is an OEM Valeo unit.

This item fits the following BMWs:
2001-2006 E46 BMW M3. M3 Convertible
2001-2002 Z3 BMW Z3 M Roadster Z3 M Coupe
2005-2008 E85 BMW Z4 M Roadster Z4 M Coupe
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Active Autowerke Power Pulley Kit - E9x M3
For vehicles with production date 2007-5/2008
Active Autowerke - Corporate Logo
T#:397285
Part#: 13-001
Ships in 4 Business Days
5% off MSRP $ 399.00

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

$ 379.99 USD
Free Shipping
5% off MSRP
$ 399.00

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

$ 379.99 USD
Free Shipping
Easy to install - reduces parasitic losses from belt driven auxiliary components. Engine crankshaft pulley remains the same, this modification simply unleashes untapped potential from your vehicle. Expect to see gains around 10 RWHP from your S65. All BMW power pulleys included, including alternator, water pump, and power steering pulleys.
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Beru - Corporate Logo
T#:584875
Part#: 12218591724
In Stock
$ 126.99 USD
Free Shipping
$ 126.99 USD
Free Shipping
Sends power to the glow plugs to preheat them for ignition.
Performance Tool - Corporate Logo
T#:1809130
Part#: W89409
In Stock at Vendor
$ 126.99 USD
Free Shipping
$ 126.99 USD
Free Shipping
For servicing overhead valve engine with cylinder head removed.

Valeo Voltage Regulator - Valeo - E53, E60, E63, E64, E70
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:1196078
Part#: 12318510090
Ships in 2 Business Days
$ 91.37 USD
Free Shipping on orders $49 and up
$ 91.37 USD
Free Shipping on orders $49 and up
OEM replacement for you BMW alternator fixing charging issues
Active Autowerke - Corporate Logo
T#:397307
Part#: 12-032
Ships in 2 Business Days
$ 240.00 USD
Free Shipping
$ 240.00 USD
Free Shipping
Rotrex superchargers utilize a unique traction drive system that sets it apart from other centrifugal-style superchargers. For best performance, Rotrex recommends replacing this fluid every 50,000 miles. This bottle of traction fluid is plenty enough for one supercharger service (typically 750ml). 
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E46 M3, MZ3 S54 OEM Valeo Alternator (New)
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377735
Part#: 12317831436
In Stock
$ 522.00

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

$ 463.99 USD
Free Shipping
$ 463.99 USD
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The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies.

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Performance Tool - Corporate Logo
T#:1809147
Part#: W5202
In Stock at Vendor
$ 21.99 USD
Free Shipping on orders $49 and up
Nitrile Butadiene Rubber
Voltage Regulator
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594108
Part#: 12317603775
Ships in 2 Business Days
$ 71.22

This product was last offered at the strikethrough price on
05-04-2026

$ 70.45 USD
Free Shipping on orders $49 and up
$ 70.45 USD
Free Shipping on orders $49 and up
Have you noticed inconsistent electrical power in your interior lately? Your voltage regulator is responsible for maintaining a constant voltage out from the alternator.
Performance Tool - Corporate Logo
T#:2242226
Part#: W80533
Ships in 2 Business Days
$ 20.25 USD
Free Shipping on orders $49 and up
Extended socket length reaches confined areas.


OEM Valeo Alternator - E60 M5, E63/64 M6
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Valeo - Corporate Logo
T#:14835
Part#: 12317836592
Ships in 7 Business Days
$ 358.99 USD
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$ 358.99 USD
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This is a Valeo brand new 170 amp alternator. These 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 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!

This item fits the following BMWs:
2006-2010 E60 BMW M5
2006-2010 E63 BMW M6

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Performance Tool - Corporate Logo
T#:2242223
Part#: W80573
Ships in 2 Business Days
$ 22.99 USD
Free Shipping on orders $49 and up
Use to install pistons on most passenger cars and truck engines
Alternator - 150 Amp - Valeo
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:579634
Part#: 439590
In Stock
$ 620.35

This product was last offered at the strikethrough price on
05-03-2026

$ 518.99 USD
Limited Qty Sale
Free Shipping
$ 620.35

This product was last offered at the strikethrough price on
05-03-2026

$ 518.99 USD
Limited Qty Sale
Free Shipping

Beru - Corporate Logo
T#:23383348
Part#: 12137510738
Ships in 3 Business Days
$ 75.02 USD
Free Shipping on orders $49 and up
Is your Mini experiencing sluggish acceleration or misfires? It might be time to check the coil pack. The coil pack plays a crucial role in the ignition system and can affect engine performance. Replace it as necessary or ideally every 100,000 miles to keep your Mini's ignition system operating smoothly.
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Valeo New Alternator - 80 Amp - E34, E36
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377737
Part#: 12311744564
In Stock at Vendor
$ 549.99

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

$ 533.99 USD
Free Shipping
$ 533.99 USD
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Brand new unit with no core charge
Active Autowerke - Corporate Logo
T#:340092
Part#: AARSC-E36M3
Ships in 10 Business Days
Starting at $ 8,074.00 USD
Free Shipping
Starting at $ 8,074.00 USD
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No one buys an M3 because they like limits. This carefully engineered kit matches the Rotrex C38 supercharger with the perfect hardware, software and tuning to take the factory 240 HP straight up to 360 HP (with the potential for even more power with additional upgrades). Best of all, if your craving for more power is still insatiable, there is a higher upgrade Level 2 featuring more boost and a front mounted air to air intercooler. The Active Autowerke supercharger systrem is truly modular and fully upgradeable. Running on 91-93 octane pump fuel with full emissions system intact, this system has stood the test of real world conditions and delivers thrill-worthy performance on demand while still retaining that BMW feel for a comfortable daily commute.
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OEM Valeo Alternator - 185 amp
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:376244
Part#: 12317525376
Ships in 2 Business Days
$ 730.23

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

$ 647.45 USD
Free Shipping
$ 647.45 USD
Free Shipping

The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

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Active Autowerke - Corporate Logo
T#:397235
Part#: 12-001
Ships on Aug 7, 2026
5% off MSRP $ 8,499.00

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

$ 8,074.99 USD
Free Shipping
5% off MSRP
$ 8,499.00

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

$ 8,074.99 USD
Free Shipping

Since getting their start in 1981, Active Autowerke has earned a well-respected reputation in the BMW community for engineering high-quality power solutions for popular BMW models. For over three decades, only one name has remained at the top of the BMW performance parts industry and Active Autowerke have built a lasting reputation as leaders in custom BMW tuning and accessories.

This supercharger kit will produce 310 horsepower and 300 ft.lbs. of torque on your BMW, while retaining platform integrity and daily driveability. Unique to the design of the Rotrex supercharger is the traction drive system, which eliminates the lag often found in other centrifugal supercharger setups. Power delivery is smooth and dependable, and 100% reversible to stock if you so choose, since each system is designed as a self-contained unit. Additionally, this kit can be expanded to deliver even more horsepower with a few simple modifications. 


Key Features

  • Rotrex C38-81 Supercharger
  • Mounting bracket, pulleys and belt
  • 6 larger high-flow fuel injectors
  • Active Autowerke Air Filter
  • Active Autowerke Dyno-Tuned Software
  • All mounting hardware, plumbing, hoses and clamps
  • Illustrated instruction manual & installation guide
  • 2 Year Warranty with free tech support


Performance Specs

Power              :      310 BHP @ 6900 rpm
Torque             :      300 ft-lbs @ 5700 rpm
Boost Level      :      7.0 psi

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

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Active Autowerke - Corporate Logo
T#:397239
Part#: 12-003
Ships on Aug 7, 2026
5% off MSRP $ 8,499.00

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

$ 8,074.00 USD
Free Shipping
5% off MSRP
$ 8,499.00

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

$ 8,074.00 USD
Free Shipping
360HP/300TQ - a complete power solution for your M3!

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
Ships in 6 Business Days
$ 378.99 USD
Free Shipping
$ 378.99 USD
Free Shipping

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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Active Autowerke - Corporate Logo
T#:28504210
Part#: 12-005
Special Order: No Guaranteed ETA
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
Free Shipping
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
Free Shipping

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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Performance Tool - Corporate Logo
T#:2242222
Part#: W80572
Ships in 2 Business Days
$ 21.99 USD
Free Shipping on orders $49 and up
Use to install pistons on most passenger cars and truck engines


Active Autowerke - Corporate Logo
T#:397296
Part#: 12-023
Ships on Aug 7, 2026
5% off MSRP $ 11,249.00

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

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

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

$ 10,686.99 USD
Free Shipping

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

Kit features:

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

Performance Specs:

  • Power   :   525 BHP @ 7650 rpm
  • Torque   :   335 ft/lbs @ 5400 rpm
  • Boost Level   :   7-8 psi
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Active Autowerke - Corporate Logo
T#:340094
Part#: AASC-E9XM3
Ships in 10 Business Days
Starting at $ 9,995.00 USD
Starting at $ 9,995.00 USD
The advanced design and sleek features of the Active Autowerke Supercharger System include a front mount air-to-air intercooler system with a separate oil cooler for the supercharger unit's independent oil system. The Active Autowerke Supercharger Plenum replaces the factory air box and is designed to have an OEM-type look with custom finishes available at the customer's request. The Active Autowerke Supercharger Plenum has been designed with eight high-flow velocity stacks, and large three-inch intercooler piping to supply cooled air.
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Alternator
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594101
Part#: 12318570672
In Stock at Vendor
$ 1,094.99

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

$ 1,062.99 USD
Free Shipping on orders $49 and up
$ 1,062.99 USD
Free Shipping on orders $49 and up
Replacement Alternator from Valeo

Valeo - Corporate Logo
T#:594588
Part#: 12417616502
Ships in 4 Business Days
$ 265.76 USD
Free Shipping
$ 265.76 USD
Free Shipping
Brand new unit - no core charge! Avoid messing with a core return entirely!

Valeo New Alternator - 230 Amp - E71, F01, F02
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:579635
Part#: 439640
Ships on Aug 17, 2026
$ 590.99 USD
Free Shipping
$ 590.99 USD
Free Shipping
New Replacement Alternator From Valeo - 12317603781
OEM Valeo New Alternator - 230amp
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:383432
Part#: 12317603782
Ships on Aug 17, 2026
$ 730.99 USD
Free Shipping
$ 730.99 USD
Free Shipping

The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

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Valeo - Corporate Logo
T#:371896
Part#: 12317501599
In Stock
$ 323.99 USD
Free Shipping
$ 323.99 USD
Free Shipping

The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

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Beru - Corporate Logo
T#:14982199
Part#: 121200405516KT
Back Ordered
$ 95.99 USD
Free Shipping on orders $49 and up
$ 95.99 USD
Free Shipping on orders $49 and up

Beru - Corporate Logo
T#:596879
Part#: 12321350052
In Stock at Vendor
$ 41.99

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

$ 40.99 USD
Free Shipping on orders $49 and up
$ 40.99 USD
Free Shipping on orders $49 and up
If you are having issues with voltage peaking, lights fading in and out as your driving, or your battery keeps dying despite the car running, It could be the result of a faulty voltage regulator. Voltage regulators control the amount of power coming from the alternator.
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OEM Valeo Alternator - E60 E63 E65 550i 650i 750i
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:379446
Part#: 12317542935KT
Back Ordered
$ 444.99 USD
Free Shipping
$ 444.99 USD
Free Shipping

The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.

This is a NEW alternator from the OEM manufacturer, Valeo. No core charge applies. Valeo is an OEM manufacturer for many BMW alternators - save money by buying the same alternator in a different box!

For vehicles with production date from 03/2005.

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Valeo Alternator - 180 Amp - E70
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377914
Part#: 12317561004
Ships in 6 Business Days
$ 482.99 USD
Free Shipping
$ 482.99 USD
Free Shipping
Brand new unit with no core charge.
OEM Valeo Starter (New)
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:380773
Part#: 12417835737
Back Ordered
$ 593.99 USD
Free Shipping
$ 593.99 USD
Free Shipping
A failed starter will leave even the best-maintained BMW stranded. Replace your failed starter motor with this brand new replacement from Valeo. Valeo is an OEM BMW supplier - save money and by quality parts by buying them in a different  box!                          
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Performance Tool - Corporate Logo
T#:641935
Part#: WLMW5203
In Stock
$ 19.99 USD
Free Shipping on orders $49 and up
Many uses around the garage and home
Performance Tool - Corporate Logo
T#:1855974
Part#: W942
In Stock
$ 8.99 USD
Free Shipping on orders $49 and up
Includes straight, angled and combination picks

Performance Tool - Corporate Logo
T#:1855998
Part#: W80535
Ships in 3 Business Days
$ 1.99 USD
Free Shipping on orders $49 and up
Easy to read markings to set gaps quickly and easily.

Alternator - 220 Amp
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594099
Part#: 12317560989
Ships on Aug 10, 2026
$ 574.96 USD
Free Shipping
$ 574.96 USD
Free Shipping
Replacement Alternator from Valeo
Alternator
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:594100
Part#: 12317561002
In Stock at Vendor
$ 794.99

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

$ 771.99 USD
Free Shipping
$ 771.99 USD
Free Shipping
The alternator in your vehicle keeps the battery at full charge when your engine is running. Because all of your electronic systems run off of this small piece, it's important that it is operational. If your lights are dim while driving or your battery dies within minutes of starting your car, it's time for a new alternator.
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Performance Tool - Corporate Logo
T#:1809138
Part#: W125C
Ships in 2 Business Days
$ 9.99 USD
Free Shipping on orders $49 and up
Thickness Gauge (32 Blades)
Performance Tool - Corporate Logo
T#:5095705
Part#: W54063
Ships in 2 Business Days
$ 5.99 USD
Free Shipping on orders $49 and up
Service the most stubborn Oil Filters and Housings

Valeo Alternator - E53
We Price Match - Give Us A Call or Chat!
Valeo - Corporate Logo
T#:377182
Part#: 12317540994
Special Order: No Guaranteed ETA
$ 384.99 USD
Free Shipping
$ 384.99 USD
Free Shipping
Restore charging system voltage with a new alternator

Active Autowerke - Corporate Logo
T#:340093
Part#: AASC-E46M3
Ships in 10 Business Days
Starting at $ 7,995.00 USD
Starting at $ 7,995.00 USD
Race on Sunday, to sell on Monday. This old saying is indicative of the new Generation 8 supercharger system for the E46 M3. Through countless hours of testing, it has often been quoted that the true test has always been a race environment. What better venue than Brock Yates One Lap of America Race. With a rigorous 7,000 miles to be covered within a week, and to compete against the likes of Porsches, Corvettes, Nissan GTRs, this would be the testing grounds for the new Generation Active Autowerke Supercharger system. The Active Autowerke Generation 8 Supercharger System not only proved its worth by being the highest ranked BMW within the field, but also ranked 1st in its class..

The data and technology that made this winning combination is now being applied in the new Generation 8 of the Active Autowerke supercharged E46 M3 level 1. Reliability and power is needed if you want to be on the podium, and this new Generation 8 will deliver exactly that. Consistent, repeatable runs of over 415 WHP (525 engine horsepower) were also recorded on the Active Autowerke chassis dyno in hot 94 + degree Fahrenheit conditions with humidity in the 60% + range. These run conditions might be considered a deterrent and not really suited, but it is better knowing the horsepower numbers are under such conditions, since higher horsepower numbers will only increase as the temperature falls and the air becomes more dense.

Stage 1 Performance Specs:
Power : 525 BHP @ 7650 rpm
Torque : 335 ft/lbs @ 5400 rpm
Boost Level : 7-8 psi

Key Features:
  • Rotrex 92 Trim Supercharger
  • Active Autowerke Gen 7 Intake Manifold w/ Dual By Pass Valve
  • Front Mount Air to Air Intercooler
  • Turbo like speed with linear power delivery
  • Large Fuel Injectors
  • Supercharger Oil Cooler
  • Colder Heat Range Spark Plugs
  • High Performance AA Spec Green Filter
  • Active Autowerke High Performance Software
  • All Mounting Hardware, plumbing, hoses and clamps
  • Proven Horsepower gains even under extreme conditions
  • Installation Instructions included
  • 2 Year Limited Warranty
    Want even more power? Upgrade to the Stage 2 kit with Larger Intercooler & Fuel System.
    The stage 2 System boosts the S54's power output to over 600BHP and includes an upgraded fuel system (includes two fuel pumps, fuel filter, all new -6 lines, fuel pressure regulator, dead end fuel rail, upgraded injectors and all required fittings). This ugpraded fuel system is a must once reaching these increased boost levels due to the fact that the factory fuel system is simply inadequate at this level. The stage 2 system also use a larger front mount air to air intercooler and the Active Autowerke custom methanol injection system. NOTE: Level 2 supercharger system is designed and engineered to operate in conjunction with the Active Autowerke Water/Methanol system as an integral part of the kit. Reasons to incapacitate, isolate, turn off, or not installing this system can and will void all warranty and related claims associated to the proper function of the specified Active Autowerke supercharger system.

    Stage 2 Performance Specs:
    Power � : � 605 BHP @ 7000 rpm
    Torque � : � 395 ft/lbs @ 5400 rpm
    Boost Level � : � 11-12 psi

    Custom built to order. Please allow 2-3 weeks for delivery.

    This item fits the following BMWs:
    2001-2006 E46 BMW M3, M3 Convertible
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    Active Autowerke - Corporate Logo
    T#:397236
    Part#: 12-002
    Ships on Aug 7, 2026
    $ 11,599.00

    This product was last offered at the strikethrough price on
    02-18-2026

    $ 11,019.00 USD
    Free Shipping
    $ 11,019.00 USD
    Free Shipping

    Since getting their start in 1981, Active Autowerke has earned a well-respected reputation in the BMW community for engineering high-quality power solutions for popular BMW models. For over three decades, only one name has remained at the top of the BMW performance parts industry and Active Autowerke have built a lasting reputation as leaders in custom BMW tuning and accessories.

    Since getting their start in 1981, Active Autowerke has earned a well-respected reputation in the BMW community for engineering high-quality power solutions for popular BMW models. This supercharger kit will produce 360+ horsepower and 300 ft.lbs. of torque on your BMW, while retaining platform integrity and daily driveability. Unique to the design of the Rotrex supercharger is the traction drive system, which eliminates the lag often found in other centrifugal supercharger setups. Power delivery is smooth and dependable, and 100% reversible to stock if you so choose, since each system is designed as a self-contained unit.

    The level 2 version of this BMW 328i Supercharger system brings you car to another level, boasting a large front mount air to air intercooler and comes complete with all piping and hardware required to make this bolt on application work. This upgrade increases your car HP an additional 25-40HP over the stage 1 system. The stage 2 upgrade also includes an new high performance fuel pump to help deliver the necessary fuel. With the reliability and performance of an inter-cooled system along with our perfectly tuned software this system is a must for the true enthusiast looking to bring their 328i to new heights.

    Kit features:

    • Rotrex C38-81 trim supercharger running 7 PSI of boost
    • Active Autowerke front-mount air to air intercooler
    • High-flow fuel pump
    • Supercharger bracket, pulleys, & belt
    • 6 high-flow fuel injectors
    • Active Autowerke air filter
    • Active Autowerke dyno-tuned software
    • All mounting hardware, plumbing, hoses, & clamps
    • Illustrated instruction manual & installation guide
    • 2 year warranty with free tech support

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

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    Active Autowerke - Corporate Logo
    T#:397295
    Part#: 12-021
    Ships on Aug 7, 2026
    5% off MSRP $ 9,375.00

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

    $ 8,906.99 USD
    Free Shipping
    5% off MSRP
    $ 9,375.00

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

    $ 8,906.99 USD
    Free Shipping

    Since getting their start in 1981, Active Autowerke has earned a well-respected reputation in the BMW community for engineering high-quality power solutions for popular BMW models. This supercharger kit will produce 425 horsepower and 295 ft.lbs. of torque on your BMW, while retaining platform integrity and daily driveability. Unique to the design of the Rotrex supercharger is the traction drive system, which eliminates the lag often found in other centrifugal supercharger setups. Power delivery is smooth and dependable, and 100% reversible to stock if you so choose, since each system is designed as a self-contained unit. best of all, when you crave more power, this kit is fully upgradeable to Level 1 and Level 2 specs.

    Kit features:

    • Rotrex C38-92 trim supercharger running 5.8 PSI of boost
    • Active Autowerke GEN 7 intake manifold
    • Active Autowere dual blow-off valve setup
    • Active Autowerke Air Filter
    • Alpha N software tune w/ SIMON2 interface
    • 6 high-flow fuel injectors
    • Dedicated oil cooling system
    • All mounting hardware, plumbing, hoses, & clamps
    • Illustrated instruction manual & installation guide
    • 2 year warranty with free tech support

    Base Prima supercharger Dynojet results:
    Boost: 5.8 psi
    Stock Horsepower:  285.4 WHP @ 7500 RPM
    Stock Torque: 232.36 LB-FT @ 5250 RPM
    Supercharged Horsepower: 426.69 WHP @ 8150 RPM
    Supercharged Torque: 297.99 LB-FT @ 7200 RPM

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    Performance Tool - Corporate Logo
    T#:1809133
    Part#: W80575
    Ships in 2 Business Days
    $ 17.62 USD
    Free Shipping on orders $49 and up
    Comfortable vinyl grip handles.