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

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Building your perfect BMW is more than just adding horsepower and stiff suspension. Your drivetrain needs attention in order to deliver power effectively. Most BMWs feature comfortable clutch discs, heavy flywheels, long shifter throws, and open differentials. The drivetrain transmits power to the wheels, but can also be a source of power loss when it is designed for comfort rather than performance. Everything on this page will help you improve your power delivery and driving experience by providing custom Limited Slip Differentials, Short Shift Conversions, Performance Clutch Discs, Lightweight Flywheels, and anything else your BMW needs to be the perfect driving experience.
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HD/Perf Street Sprung
Must be used with ACT Flywheel 601010 or 601015
ACT - Corporate Logo
T#:567299
Part#: BM9-HDSS
In Stock
$ 897.00 USD
Free Shipping
$ 897.00 USD
Free Shipping
This kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability.
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ACT - Corporate Logo
T#:567293
Part#: BM9-XTSS
In Stock at Vendor
$ 949.00 USD
Free Shipping
$ 949.00 USD
Free Shipping
### **BM9-XTSS Clutch Kit – Engineered for Peak Performance** The **BM9-XTSS Clutch Kit** is designed for enthusiasts who demand maximum performance and durability. Featuring an **ACT Xtreme pressure plate**, this kit delivers **higher clamp load, reduced deflection, and extended clutch life**—ideal for spirited street driving and track use. Each diaphragm undergoes a **four-stage heat-treatment process**, ensuring superior strength and longevity. **Precision cover stampings** enhance rigidity, providing a significant upgrade over stock components. Paired with **ACT’s Performance Street Disc**, this kit utilizes **steel-backed organic friction material** with **high copper content** for **better heat dissipation and burst strength**. Its **reduced marcel design** allows for **quicker, smoother shifts**, perfectly complementing the Xtreme pressure plate. Expect **quiet operation, enhanced durability, and long-term reliability**, making it a top choice for performance-driven drivers. ### **Key Features:** - **Pedal Feel:** Moderate to heavy effort, smooth engagement, and minimal gear rattle. - **Extended Lifespan:** ACT’s exclusive diaphragm design ensures longer-lasting friction material. - **Precision Engineering:** Optimized for **heat resistance, fade reduction, and maximum durability**. Upgrade your drivetrain with confidence—the **ACT BM9-XTSS Clutch Kit** is built to handle the pressure. 🚗💨
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ACT - Corporate Logo
T#:567303
Part#: 601010
In Stock at Vendor
$ 748.00 USD
Free Shipping
$ 748.00 USD
Free Shipping
This Streetlite flywheel is considerably lighter than stock and is the most durable flywheel offering from ACT. This is preferred for street or drag racing. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts. Noticeably improved engine response and acceleration, OE to mild gear rattle LifeHeat-treated forging for strength and toughness, induction-hardened ring gears for maximum life One-piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears CNC machined and dynamically computer balanced for smooth high RPM reliability
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ACT - Corporate Logo
T#:26638199
Part#: 3000801
In Stock at Vendor
$ 161.00 USD
Free Shipping on orders $49 and up
The 3000801 represents a top-tier performance street disc and stands out as one of the most sought-after options available. Crafted with premium organic materials boasting a high copper content, it ensures superior heat transfer capabilities. These performance street discs facilitate swift shifting and seamless engagement, delivering a satisfying driving experience. Engineered with a reduced marcel, they offer accelerated shift action, perfectly complementing ACT pressure plates. ACT spring-centered assemblies incorporate bushings and cone springs akin to factory clutch discs, introducing frictional dampening that enhances clutch longevity and minimizes noise. Experience quiet operation alongside heightened durability and reliability with this exceptional street disc.
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ACT - Corporate Logo
T#:14221793
Part#: BM17-HDR6
Ships in 2 Business Days
$ 820.00 USD
Free Shipping on orders $49 and up
BM13-HDR6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 6-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 6-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 6-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.
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HD/Perf Street Sprung - BM16-HDSS
For vehicles with 6 speed transmission and production date from 03/2003
ACT - Corporate Logo
T#:599342
Part#: BM16-HDSS
Ships in 2 Business Days
$ 863.00 USD
Free Shipping on orders $49 and up
$ 863.00 USD
Free Shipping on orders $49 and up
ACT - Corporate Logo
T#:4126638
Part#: BM9-XTSS - XT
Ships in 6 Business Days
$ 883.00 USD
Free Shipping on orders $49 and up

Advanced Clutch Technology (ACT) designs, engineers and develops products by leveraging decades of track and performance street experience. Advanced CAD, FEA simulation, and CAM tools help ensure highly optimized performance, reliability, and repeatability. These key advantages are produced by combining the best engineering and design methodologies with the latest in materials and manufacturing techniques.

ACT clutch kits stand unequaled in terms of consistent pedal feel, high torque capacity, long wear life and durability. In-house manufacturing is critical in tuning components specifically to each individual application while maintaining the predictable ACT pedal feel across the entire catalog.

This clutch kit features an Xtreme pressure plate, a Performance Street sprung clutch disc, and an XACT Streetlite Flywheel.

Their Xtreme pressure plate offers a 50-120% clamp load increase, moderate to heavy pedal feel, and is recommended for high performance street and racing applications. All diaphragms went through a four stage heating process for increased strength and unparalleled performance.

Next in this kit is the Performance Street clutch disc. This is the most popular sprung clutch disc and features high quality organic friction material with a high copper content for improved heat transfer and a steel backed lining for increased strength in burst load circumstances. This organic clutch disc has a significantly higher torque capacity than a stock disc but still retains a long life span and operates quietly and reliably.

 

Clutch Kit Specs:

  • Torque Rating: 520 ft/lbs
  • 68% torque capacity increase over stock!
  • Type of Disc: Street
  • 26-count spline
  • Spline Size: 1-3/8" inch
  • Disc Weight: 3.5 lbs
  • Pressure Plate Weight: 10.7 lbs
  • 1 year Warranty from retail purchase date!
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ACT - Corporate Logo
T#:567306
Part#: BM9-HDSSKT
In Stock at Vendor
$ 1,645.00 USD
Free Shipping
$ 1,645.00 USD
Free Shipping

Every design is thoroughly researched and tested prior to release to guarantee their products meet and exceed the customer's expectations. Careful attention is payed to factors such as engine torque, maximum RPM, drive type (FWD, RWD, AWD), and the type of driving being done, such as street, sport, track events, racing, etc. ACT's clutch kits are competitively priced, often with  specifications greater than competitor's and at a higher quality.

This clutch kit features a Xtreme pressure plate, an G6 racing clutch disc, and an XACT Streetlite Flywheel.

Their Xtreme pressure plate offers a 50-120% clamp load increase, moderate to heavy pedal feel, and is recommended for high performance street and racing applications. All diaphragms went through a four stage heating process for increased strength and unparalleled performance.

The G6 clutch disc is a sprung, 6-pad racing disc that is recommended for high horsepower street and race us and is better at handling high heat than the 4-pad disc. Its material composition is high quality, ceramic friction materials and a heavy duty torsional dampening springs that are rate for this clutch disc's size and expected uses. It has an increased torque capacity, and is better for faster shifting with its low weight and inertia. Being a racing disc, it has good durability and its ceramic composition allows for high heat tolerances. It also has a fast, aggressive engagement in comparison to standard street-use clutch discs.

The XACT Streetlite Flywheel is their most popular flywheel as it is great for both street and drag racing. It allows your engine to rev quicker, giving you increased throttle response, and is considerably lighter than your stock flywheel thanks to its light single-mass design, all while still being very durable!

Clutch Kit Specs:

  • Torque Rating: 465 ft/lbs
  • 52% torque capacity increase over stock!
  • Type of Disc: Street
  • 10-count spline
  • Spline Size: 1-3/8" inch
  • Flywheel Weight: 15.1 lbs
  • 1 year Warranty from retail purchase date!
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HD/Race Sprung 6 Pad
Must be used with ACT Flywheel 601010 or 601015
ACT - Corporate Logo
T#:567300
Part#: BM9-HDG6
Ships in 2 Business Days
$ 935.00 USD
Free Shipping
$ 935.00 USD
Free Shipping
BM9-HDG4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.
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ACT - Corporate Logo
T#:14221780
Part#: BM13-HDG6
Ships in 2 Business Days
$ 1,607.00 USD
Free Shipping on orders $49 and up
BM13-HDG6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 6-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 6-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 6-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.
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ACT - Corporate Logo
T#:14221783
Part#: BM13-HDR4
In Stock at Vendor
$ 1,535.00 USD
Free Shipping on orders $49 and up
BM13-HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.
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ACT - Corporate Logo
T#:14221789
Part#: BM13-HDSS
Ships in 2 Business Days
$ 1,588.00 USD
Free Shipping on orders $49 and up
This kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability.
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ACT - Corporate Logo
T#:14221779
Part#: BM13-HDG4
In Stock at Vendor
$ 1,599.00 USD
Free Shipping on orders $49 and up
BM13-HDG4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.
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ACT - Corporate Logo
T#:14221788
Part#: BM13-HDR6
Ships in 2 Business Days
$ 1,554.00 USD
Free Shipping on orders $49 and up
BM13-HDR6 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 6-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 6-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 6-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.
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ACT - Corporate Logo
T#:14221778
Part#: BM12-HDG4
Ships in 6 Business Days
$ 1,559.00 USD
Free Shipping on orders $49 and up
BM12-HDG4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.
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CSF Universal Large Single-Pass Oil Cooler - Universal Application ...
Universal fitment design - modifications may be necessary to run this cooler
CSF - Corporate Logo
T#:53608839
Part#: 8371
Ships in 3 Business Days
New Item
$ 499.00 USD
Free Shipping
$ 499.00 USD
Free Shipping
CSF redesigned this cooler and went with a more traditional inlet/outlet orientation. The new single pass design features high efficiency and high durability, but with vertically oriented inlet and outlet connections.
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HD/Race Sprung 4 Pad
Must be used with ACT Flywheel 601010 or 601015
ACT - Corporate Logo
T#:567301
Part#: BM9-HDG4
Ships in 6 Business Days
$ 905.00 USD
Free Shipping
$ 905.00 USD
Free Shipping
BM9-HDG4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.
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ACT - Corporate Logo
T#:567302
Part#: 601015
In Stock at Vendor
$ 766.00 USD
Free Shipping
$ 766.00 USD
Free Shipping
The **ACT 601015 Prolite Flywheel** is ACT’s **lightest, lowest-inertia option**, designed for **quick throttle response and rapid acceleration**. Perfect for **road and rally racing**, it prioritizes **performance over drivability**. Precision-balanced for **strength, heat resistance, and rigidity**, it ensures **consistent high-rev performance**. Additionally, ACT flywheels are **fully serviceable** and can be **resurfaced without extra parts**.
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