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

E46 M3 6MT JB Racing Lightweight Aluminum Flywheel

T#:302739

Part#: 520-180-240

Ships in 8 Business Days

$ 602.00 USD

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$ 602.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch). In addition to the standard replacement clutches, we also sell Sachs Performance sprung hub clutches that also work with the JB flywheels.

Stock Flywheel Weight = 25.0lbs
JB Flywheel Weight = 10.0lbs

This item fits the following BMWs:
2001-2006 E46 BMW M3 (6-speed manual only, not for SMG)

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E46 323/325/328/330 5-speed, Z3 2.3/2.8/3.0 JB Racing Lightweight Alu...

T#:4227

Part#: 520-140-240

In Stock

$ 602.00 USD

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$ 602.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch). In addition to the standard replacement clutches, we also sell Sachs Performance sprung hub clutches that also work with the JB flywheels.

Stock Flywheel Weight = 25.0lbs
JB Flywheel Weight = 10.0lbs

This item fits the following BMWs:
1999-2002 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci (with 5-speed manual transmission)
2001-2005 E46 BMW 325xi 330xi
1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i

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JB Racing Single Mass Lightweight Aluminum Flywheel - 6-speed - E46 3...

For vehicles with a six-speed manual transmission

T#:3474

Part#: 520-190-240

Ships in 2 Business Days

$ 672.00 USD

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$ 672.00 USD

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This is a performance replacement for BMW Part # 21207533868 Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

The JB Flywheel includes the pilot bearing mounted in the flywheel hub, just like the factory configuration.

Stock Flywheel Weight = 25.0lbs
JB Flywheel Weight = 10.5lbs

This item fits the following BMWs:
2002-2005 E46 BMW 325i 330i (with 6-speed manual transmission)

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Clutch Alignment Tool - E46, E39, Z3

T#:5426

Part#: BMW02

Ships on Aug 31, 2026

$ 22.99 USD

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$ 22.99 USD

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This clutch alignment tool exactly replicates the shaft and splines of the vehicle's drive shaft. It is made of high quality polypropylene injected plastics and insures perfect alignment of the clutch. Extremely durable, the clutch tool can be used over and over again. A must for anybody replacing a clutch. Spline = 28.575MM

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
1997-2003 E39 BMW 525i 528i 530i M5
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 3.0i

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SPEC Stage 2+ Performance Clutch Kit - E46 M3 6MT

T#:340444

Part#: SB663H

Ships in 3 Business Days

Starting at $ 869.00 USD

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Starting at $ 869.00 USD

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The SPEC Stage 2 clutch is a premium, no compromises heavy-duty clutch upgrade for the 2001-2006 E46 M3 (manual transmission). Where the stock clutch is well-known for premature wear when driven hard and the factory dual mass flywheel is a known failure point, the SPEC clutch delivers with an over-engineered, performance-oriented clutch solution. The single carbon-Kevlar clutch is rated at 545 ft-lbs, more than enough for the naturally-aspirated S54 engines. A heavy-duty pressure plate and throw-out bearing complete the package.

The stock clutch in the S54 cars is not a terrible clutch and it is not under-rated (it's the same clutch disc used in the E39 M5). Our tuned M3 street and race cars have used the stock clutch with almost 400hp with only the occassional slip. But if the clutch is not grabbing like you want it to, or your tuning plans will include forced induction, a heavy-duty clutch is what will be needed. The SPEC Stage 2 clutch consists of a carbon-Kevlar friction material paired with a heavy-duty pressure plate. The clutch is stronger and grabs harder than the factory clutch. It has a much more robust feel and engagement. And with this specification the clutch will never be a weak point. The SPEC clutch is designed to work with the stock dual mass flywheel or the SPEC single-mass flywheel (steel or aluminum).

The real weak point in the driveline is in the flywheel. The stock dual-mass flywheel has rubber damper discs inside that will wear out over time. Heat and aggressive driving will accelerate their wear. Even if the clutch contact surface is not showing wear the inner rubber linings most likely are. On most clutch replacements we strongly advise getting a new flywheel at the same time to avoid duplicating the work. You can use the SPEC clutch with the stock or SPEC flywheel. Both the SPEC steel and aluminum flywheels are lighter than stock and will be single-mass. There will be a lot more noise and 'gearbox chatter' with the aluminum but the tradeoff is a much better acceleration and quicker revving. For daily driver commuting you will probably be happiest with the stock flywheel. For the ultimate in sports car feel use the aluminum. For the best of both worlds select the SPEC steel flywheel. It will not fail like the dual mass design but still has enough mass to dampen most engine vibrations.

SPEC Clutch is one of the premier clutch and flywheel suppliers to the tuner market. They are often found on the most highly tuned import and domestic vehicles. They are recent players in the German car community with a special focus on the newer turbo BMW models with high torque output. SPEC has been proven time after time to provide superior performance, drivability, and longevity to the most hardcare enthusiasts around the globe.

E46 M3 SPEC Clutch Kit contents:
+ carbon-Kevlar clutch disc
+ heavy-duty pressure plate
+ heavy duty billet throw-out bearing

This item fits the following BMWs:
2001-2006 E46 BMW M3 with 6 speed manual transmission

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Sachs Performance Clutch Kit for JB Racing Flywheel Kit - E36, E46, Z...

2X Entries For Our G87 M2 Sweepstakes!

T#:4311

Part#: 881861999855-K

Ships in 8 Business Days

$ 928.95 USD

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$ 928.95 USD

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This replacement "sprung-hub" clutch package is designed to work with our (JB Racing) lightweight aluminum flywheel 520-010-240 for the BMW E36, E46, Z3, and Z4 models. The Sachs HD clutch disc has a sprung hub to minimize noise and vibration and organic linings to give the feel and engagement of a stock clutch.

The Sachs HD pressure plate will clamp with greater force -- allowing approximately 350 ft-lbs of torque, which makes it an obvious upgrade from the stock clutch kit.

Because Sachs is an OE supplier to most German cars, replacement parts are just a phone call away. This kit uses the stock throw-out bearing (included in the price!).

**Not for use with stock flywheel or other brands of lightweight flywheels**

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Clutch Alignment Tool - 10-SPline - 1.380" - .580" Pilot

T#:5425

Part#: BMW01

In Stock

$ 22.99 USD

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$ 22.99 USD

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This clutch alignment tool exactly replicates the shaft and splines of the vehicle's drive shaft. It is made of high quality polypropylene injected plastics and insures perfect alignment of the clutch. Extremely durable, the clutch tool can be used over and over again. A must for anybody replacing a clutch.
Spline = 34.925MM

This item fits the following BMWs:
1999-2003 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
2001-2006 E46 BMW M3
1997-2003 E39 BMW 530i 540i M5
2000-2002 Z3 BMW Z3 3.0i

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Spec Clutch And Flywheel

For vehicles with production from 04/2004

T#:583816

Part#: SB801KT

Ships in 3 Business Days

$ 1,268.00 USD

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$ 1,268.00 USD

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E46 330i SPEC Stage 1 Performance Clutch Kit

T#:340432

Part#: SB031

Ships in 3 Business Days

Starting at $ 749.00 USD

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Starting at $ 749.00 USD

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The SPEC Stage 1 clutch is a premium, no compromises SPORT clutch upgrade for the 2001-2003 E46 330i/ci (5-speed transmission). Where the stock clutch is well-known for premature wear when driven hard and the factory dual mass flywheel is a known failure point, the SPEC clutch delivers with an over-engineered, performance-oriented clutch solution. The single carbon-Kevlar clutch is rated at 430 ft-lbs, more than enough for a naturally-aspirated M54 engine. A heavy-duty pressure plate and throw-out bearing complete the package.

The stock 330 clutch was not designed for performance. It works fine for a daily driver street car with no mods but performance and longevity quickly drop off when adding more power or using the car for aggressive street, autocross, or track use. A lot of our customers also hate the self-adjusting clutch (SAC) mechanism and the clutch delay valve that makes clutch engagement inconsistent and unnatural feeling. It's no wonder that for the Grand-Am Cup touring car races the rules specified an E36 M3 clutch! If you're unhappy with the stock clutch feel or your future plans include additional upgrades that boost torque, then a heavy-duty clutch is what will be needed. The SPEC Stage 1 clutch consists of a hybrid carbon-Kevlar and organic friction material paired with a heavy-duty pressure plate. The clutch is stronger and grabs harder than the factory clutch. It has a much more robust feel and engagement. And with this specification the clutch will never be a weak point. The SPEC clutch is designed to work with the stock dual mass flywheel or with a lightweight aluminum single-mass flywheel.

The real weak point in the driveline is in the flywheel. The stock dual-mass flywheel has rubber damper discs inside that will wear out over time. Heat and aggressive driving will accelerate their wear. Even if the clutch contact surface is not showing wear the inner rubber linings most likely are. On most clutch replacements we strongly advise getting a new flywheel at the same time to avoid duplicating the work. You can use the SPEC clutch with the stock or an aluminum flywheel. A machined steel flywheel is also an option as a middle ground. Both the SPEC steel and aluminum flywheels are lighter than stock and will be single-mass. There will be a lot more noise and 'gearbox chatter' with the aluminum but the tradeoff is a much better acceleration and quicker revving. For daily driver commuting you will probably be happiest with the stock flywheel. For the ultimate in sports car feel use the aluminum.

SPEC Clutch is one of the premier clutch and flywheel suppliers to the tuner market. They are often found on the most highly tuned import and domestic vehicles. They are recent players in the German car community with a special focus on the newer turbo BMW models with high torque output. SPEC has been proven time after time to provide superior performance, drivability, and longevity to the most hardcare enthusiasts around the globe.

E46 330 SPEC Clutch Kit contents:
+ carbon-Kevlar clutch disc
+ heavy-duty pressure plate
+ heavy duty throw-out bearing

This item fits the following BMWs:
2001-2003 E46 BMW 330i 330ci 330xi only for 5-speed manual transmission

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SPEC Stage 2+ Performance Clutch Kit - E46 M3 SMG

T#:340445

Part#: SB663HSMG

Ships in 3 Business Days

Starting at $ 879.00 USD

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Starting at $ 879.00 USD

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The SPEC Stage 2 clutch is a premium, no compromises heavy-duty clutch upgrade for the 2001-2006 E46 M3 (SMG transmission). Where the stock clutch is well-known for premature wear when driven hard and the factory dual mass flywheel is a known failure point, the SPEC clutch delivers with an over-engineered, performance-oriented clutch solution. The single carbon-Kevlar clutch is rated at 545 ft-lbs, more than enough for the naturally-aspirated S54 engines. A heavy-duty pressure plate and throw-out bearing complete the package.

The stock clutch in the S54 cars is not a terrible clutch and it is not under-rated (it's the same clutch disc used in the E39 M5). Our tuned M3 street and race cars have used the stock clutch with almost 400hp with only the occassional slip. But if the clutch is not grabbing like you want it to, or your tuning plans will include forced induction, a heavy-duty clutch is what will be needed. The SPEC Stage 2 clutch consists of a carbon-Kevlar friction material paired with a heavy-duty pressure plate. The clutch is stronger and grabs harder than the factory clutch. It has a much more robust feel and engagement. And with this specification the clutch will never be a weak point. The SPEC clutch is designed to work with the stock dual mass flywheel or the SPEC single-mass flywheel (steel or aluminum).

The real weak point in the driveline is in the flywheel. The stock dual-mass flywheel has rubber damper discs inside that will wear out over time. Heat and aggressive driving will accelerate their wear. Even if the clutch contact surface is not showing wear the inner rubber linings most likely are. On most clutch replacements we strongly advise getting a new flywheel at the same time to avoid duplicating the work. You can use the SPEC clutch with the stock or SPEC flywheel. Both the SPEC steel and aluminum flywheels are lighter than stock and will be single-mass. There will be a lot more noise and 'gearbox chatter' with the aluminum but the tradeoff is a much better acceleration and quicker revving. For daily driver commuting you will probably be happiest with the stock flywheel. For the ultimate in sports car feel use the aluminum. For the best of both worlds select the SPEC steel flywheel. It will not fail like the dual mass design but still has enough mass to dampen most engine vibrations.

SPEC Clutch is one of the premier clutch and flywheel suppliers to the tuner market. They are often found on the most highly tuned import and domestic vehicles. They are recent players in the German car community with a special focus on the newer turbo BMW models with high torque output. SPEC has been proven time after time to provide superior performance, drivability, and longevity to the most hardcare enthusiasts around the globe.

E46 M3 SPEC Clutch Kit contents:
+ carbon-Kevlar clutch disc
+ heavy-duty pressure plate
+ heavy duty throw-out bearing

This item fits the following BMWs:
2001-2006 E46 BMW M3 with SMG

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Stage 2 Spec Clutch And Flywheel - E46 6spd

For vehicles with a production date from 03/2003

T#:5567045

Part#: SB072SKT

In Stock

$ 1,424.00 USD

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$ 1,424.00 USD

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Features an integrally molded carbon kevlar-based, high performance organic lining that offers smooth engagement and excellent life. This lining has an integrally bonded steel backing for strength under high clamp loads and temperatures. The hub is double with spring cover relieves for flexibility and heat treated components for strength and durability. Best for street and many track/off-road applications. High clamp pressure plate Steel-backed and multi-compound woven organic material High torque sprung hub and disc assembly Bearing and tool kit Torque Capacity 485ft⋅lb Includes new billet non-SAC pressure plate and aluminum flywheel.

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Clutch Alignment Tool - 10-Spline - 1 3/8" - .590" Pilot

T#:5424

Part#: TLS-33-25

In Stock

$ 7.99 USD

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$ 7.99 USD

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This clutch alignment tool exactly replicates the shaft and splines of the vehicle's drive shaft. It is made of high quality polypropylene injected plastics and insures perfect alignment of the clutch. Extremely durable, the clutch tool can be used over and over again. A must for anybody replacing a clutch.

This item fits the following BMWs:
onvertible
1993-1995 E34 BMW 540i

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Clutch Alignment Tool - E46 E60 E83 X3 E53 X5

For vehicles with production date from 09/2003

T#:11930

Part#: BMW103

In Stock

Sale - Save 57% $ 22.99

This product was last offered at the strikethrough price on
05-14-2026

$ 9.80 USD

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Qty

Sale - Save 57%

$ 22.99

This product was last offered at the strikethrough price on
05-14-2026

$ 9.80 USD

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This clutch alignment tool exactly replicates the shaft and splines of the vehicle's drive shaft. It is made of high quality polypropylene injected plastics and insures perfect alignment of the clutch. Extremely durable, the clutch tool can be used over and over again. A must for anybody replacing a clutch.

This item fits the following BMWs:
2004-2005 E46 BMW 325i 325ci 325xi 330i 330ci 330xi - 6 speed
2004-2005 E60 BMW 525i 530i
2004-2006 E83 BMW X3 2.5i X3 3.0i
2004-2006 E53 BMW X5 3.0i

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Spec Stage 2 Clutch Kit - BMW E46 6spd 03-06

For vehicles with a production date from 03/2003

T#:5567044

Part#: SB072S-S2

In Stock

$ 829.00 USD

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$ 829.00 USD

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Features an integrally molded carbon kevlar-based, high performance organic lining that offers smooth engagement and excellent life. This lining has an integrally bonded steel backing for strength under high clamp loads and temperatures. The hub is double with spring cover relieves for flexibility and heat treated components for strength and durability. Best for street and many track/off-road applications. High clamp pressure plate Steel-backed and multi-compound woven organic material High torque sprung hub and disc assembly Bearing and tool kit Torque Capacity 485ft⋅lb Includes new billet non-SAC pressure plate.

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Spec

T#:583815

Part#: SB801

Ships in 3 Business Days

$ 649.00 USD

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Qty

$ 649.00 USD

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The SPEC Stage 1 Clutch Kit presents an integrally molded lining crafted from carbon kevlar, offering top-notch organic performance for smooth engagement and prolonged durability. Its steel backing is seamlessly bonded to withstand heightened clamp loads and temperatures. The double-sprung hub, equipped with spring cover reliefs, enhances flexibility, while heat-treated components ensure strength and longevity. Suited for street driving and a range of track and off-road scenarios. Key Features: High clamp pressure plate Steel-backed with multi-compound woven organic material High-torque sprung hub and disc assembly Includes bearing and tool kit (specific models available, inquire for details) Recommended Driving Styles: Street, Drag, Drift, Road Race, Rallye, Pulling, Autocross The SPEC Stage 1 Clutch Kit presents an integrally molded lining crafted from carbon kevlar, offering top-notch organic performance for smooth engagement and prolonged durability. Its steel backing is seamlessly bonded to withstand heightened clamp loads and temperatures. The double-sprung hub, equipped with spring cover reliefs, enhances flexibility, while heat-treated components ensure strength and longevity. Suited for street driving and a range of track and off-road scenarios. Key Features: High clamp pressure plate Steel-backed with multi-compound woven organic material High-torque sprung hub and disc assembly Includes bearing and tool kit (specific models available, inquire for details) Recommended Driving Styles: Street, Drag, Drift, Road Race, Rallye, Pulling, Autocross

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E46 330i SPEC Stage 2+ Performance Clutch Kit

T#:340433

Part#: SB033H

Ships in 7 Business Days

Sale - Save 2% $ 2,866.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 2,809.62 USD

Add to Wish List

Sale - Save 2%

$ 2,866.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 2,809.62 USD

Add to Wish List

The SPEC Stage 2+ clutch is a premium, no compromises heavy-duty clutch upgrade for the 2001-2003 E46 330i/ci (5-speed transmission). It goes beyond the standard Stage 1 upgrade with a higher-capacity clutch disc rated at 545ft-lbs! Where the stock clutch is well-known for premature wear when driven hard and the factory dual mass flywheel is a known failure point, the SPEC clutch delivers with an over-engineered, performance-oriented clutch solution.

The stock 330 clutch was not designed for performance. It works fine for a daily driver street car with no mods but performance and longevity quickly drop off when adding more power or using the car for aggressive street, autocross, or track use. A lot of our customers also hate the self-adjusting clutch (SAC) mechanism and the clutch delay valve that makes clutch engagement inconsistent and unnatural feeling. It's no wonder that for the Grand-Am Cup touring car races the rules specified an E36 M3 clutch! If you're unhappy with the stock clutch feel or your future plans include additional upgrades that boost torque, then a heavy-duty clutch is what will be needed. The SPEC Stage 2+ clutch consists of a carbon-Kevlar friction material paired with a heavy-duty pressure plate. The clutch is stronger and grabs harder than the factory clutch. It has a much more robust feel and engagement. And with this specification the clutch will never be a weak point. The SPEC clutch is designed to work with the stock dual mass flywheel or with a lightweight aluminum single-mass flywheel.

The real weak point in the driveline is in the flywheel. The stock dual-mass flywheel has rubber damper discs inside that will wear out over time. Heat and aggressive driving will accelerate their wear. Even if the clutch contact surface is not showing wear the inner rubber linings most likely are. On most clutch replacements we strongly advise getting a new flywheel at the same time to avoid duplicating the work. You can use the SPEC clutch with the stock or an aluminum flywheel. A machined steel flywheel is also an option as a middle ground. Both the SPEC steel and aluminum flywheels are lighter than stock and will be single-mass. There will be a lot more noise and 'gearbox chatter' with the aluminum but the tradeoff is a much better acceleration and quicker revving. For daily driver commuting you will probably be happiest with the stock flywheel. For the ultimate in sports car feel use the aluminum.

SPEC Clutch is one of the premier clutch and flywheel suppliers to the tuner market. They are often found on the most highly tuned import and domestic vehicles. They are recent players in the German car community with a special focus on the newer turbo BMW models with high torque output. SPEC has been proven time after time to provide superior performance, drivability, and longevity to the most hardcare enthusiasts around the globe.

E46 330 SPEC Clutch Kit contents:
+ carbon-Kevlar clutch disc
+ heavy-duty pressure plate
+ heavy duty throw-out bearing

This item fits the following BMWs:
2001-2003 E46 BMW 330i 330ci 330xi only for 5-speed manual transmission

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E46 M3 JB Racing Ultra-Light Racing Clutch/Flywheel Assembly ...

T#:340510

Part#: WCCLUTCH-E46M3

Ships in 5 Business Days

Starting at $ 2,015.99 USD

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Starting at $ 2,015.99 USD

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The ultimate in a racing flywheel and clutch! This was developed for use in our E36 and E46 World Challenge Touring Cars. The combined weight of the clutch and flywheel is only 11lbs!!!

This multi-disc (2 or 3 disc setups) offer a minimal flywheel mass (enough to include a factory ring gear for the starter) and a small 5.5" clutch assembly rated to 500ft-lbs. By saving as much weight as possible less energy is used in simply spinning the flywheel/clutch assembly and that means a lot more power and torque is available at the drive wheels. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines and this is among the most advanced and lightest racing clutch kits available for your BMW race car.

The JB Ultra-Light Performance racing clutch is available in 2-disc or 3-disc setups. A 3-disc setup is less susceptible to heat and will have a higher torque capacity. On our M54-powered 325i Touring Cars (approximately 300hp) we used the 5.5"/140mm 2-disc configuration. The 5.5" clutch was a perfect blend of performance and durability. It wasn't too small to suffer from high temperatures and wasn't too large that it couldn't be slipped (slipping prevents damage to other components). This is a turn-key racing clutch and flywheel kit that you don't have to engineer or spec yourself. This is the same clutch setup we used when winning the 2003 and 2004 Touring Car Championships - the quality and performance is unquestionable. That series also employed standing starts at each race and this clutch setup performed flawlessly with nearly a full season of racing on them before needing a change.

JB Ultra-Light flywheels include:

precision CNC machined aluminum flywheel

zero-balanced

replaceable hardened steel clutch friction surface

Helicoil threaded inserts

high-strength grade 10.9 hardware

multi-disc Sachs or Powertrain Technology racing clutch with racing pressure plate

JB Racing throw-out bearing with custom bobbin
This is a true racing clutch and will not function as a street-able clutch at all. It behaves as an on/off switch with no slippage allowed. Extreme care must be used when driving on to trailers and around the paddock. But when driven correctly the life span of this clutch is amazing - we could get a full season of racing a 300hp M54 from this clutch setup including standing starts at every race! Replacement clutch components and flywheel rebuilding are available.

A properly adjusted clutch stop is required for use with this clutch kit.

Stock Flywheel + Clutch Weight = 45+lbs
JB Ultra-Light Flywheel & Clutch Weight = 11lbs

This item fits the following BMWs:
2001-2006 E46 BMW M3

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Spec Stage 2+ Clutch Kit - BMW E46 6spd 03-06

For vehicles with a production date from 03/2003

T#:5567042

Part#: SB073HS

Ships in 3 Business Days

$ 869.00 USD

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Qty

$ 869.00 USD

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Features an integrally molded carbon kevlar-based, high performance organic lining that offers smooth engagement and excellent life. This lining has an integrally bonded steel backing for strength under high clamp loads and temperatures. The hub is double with spring cover relieves for flexibility and heat treated components for strength and durability. Best for street and many track/off-road applications. High clamp pressure plate Steel-backed and multi-compound woven organic material High torque sprung hub and disc assembly Bearing and tool kit Torque Capacity 545ft⋅lb Includes new billet non-SAC pressure plate.

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SPEC Clutch Stage 3+ Performance Clutch Kit (For OE Dual Mass Flywhee...

For 1999-2000 models For 2001-2005 models with a 5-Speed Transmission

T#:41458822

Part#: SB033F

Ships in 3 Business Days

$ 865.00 USD

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$ 865.00 USD

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Looking to upgrade your BMW's clutch to a clutch kit with a higher torque capacity? This Stage 3+ clutch kit is a great option. This clutch kit is designed to support up to 671 ft-lbs of torque, which is significantly stronger than your stock clutch disk and pressure plate. This kit is also designed to be used with your stock dual-mass flywheel (DMF), eliminating the need to purchase an expensive flywheel upgrade in addition to the clutch kit.

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SPEC - BMW E46 Clutch SB803HS

This clutch kit should be used in conjunction with a billet single mass flywheel

T#:35121128

Part#: SB803HS

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$ 729.00 USD

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$ 729.00 USD

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Spec Sprung Disc Replacement (For SB662 Clutch Kit) DISC ONLY - 01-...

T#:38351606

Part#: SBD662S

In Stock at Vendor

$ 424.99 USD

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$ 424.99 USD

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The Spec 2001-2006 BMW M3 3.2L Sprung Disc Replacement (For SB662 Clutch Kit) is a high-quality replacement for the original clutch disc. Engineered for compatibility with the SB662 clutch kit, it features durable construction for long-lasting performance. Its sprung design ensures smooth engagement, while the lightweight build enhances overall efficiency. This replacement disc is the perfect solution for maintaining your BMW M3’s optimal performance.

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JB Racing Lightweight Steel Flywheel - Grand-Am Legal - E46, MZ3, Z4 ...

T#:40748575

Part#: 520010240SGA

Ships on Sep 4, 2026

$ 868.00 USD

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$ 868.00 USD

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This lightened steel flywheel is specifically designed (and approved) for use in Grand-Am road racing but can also be used as a mild street upgrade if a full aluminum lightweight flywheel is not called for. The Grand-Am flywheel is 20% lighter than stock to meet the rules for the GS and ST classes.Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. A lightweight flywheel does away with the dual mass design and its additional mass so more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. The engine revs much faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

Grand-Am approved this flywheel to be used with a factory E36 M3 clutch. This opens up a lot of clutch and pressure plate options but we typically used this with a stock Sachs OEM clutch kit. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches.

Lightweight flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch). In addition to the standard replacement clutches, we also sell Sachs Performance sprung hub clutches that also work with the JB flywheels.

If being used on a 330i 6-speed or Z4 6-speed an additional pilot bearing hub is required. Select your appropriate model and transmission from the list below.

Stock Flywheel Weight = 25.0lbs
JB Flywheel Weight = 20.0lbs

This item fits the following BMWs:
2001-2002 E46 BMW 330i 330ci 5-speed
2003-2006 E46 BMW 330i 330ci 6-speed
2001-2006 E46 BMW M3
1998-2002 Z3 BMW Z3 M Roadster M Coupe
2003-2005 E85 BMW Z4 2.5i Z4 3.0i

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

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E46 M3 6MT JB Racing Lightweight Aluminum Flywheel

E46 323/325/328/330 5-speed, Z3 2.3/2.8/3.0 JB Racing Lightweight Alu...

JB Racing Single Mass Lightweight Aluminum Flywheel - 6-speed - E46 3...

Clutch Alignment Tool - E46, E39, Z3

SPEC Stage 2+ Performance Clutch Kit - E46 M3 6MT

Sachs Performance Clutch Kit for JB Racing Flywheel Kit - E36, E46, Z...

Clutch Alignment Tool - 10-SPline - 1.380" - .580" Pilot

Spec Clutch And Flywheel

E46 330i SPEC Stage 1 Performance Clutch Kit

SPEC Stage 2+ Performance Clutch Kit - E46 M3 SMG

Stage 2 Spec Clutch And Flywheel - E46 6spd

Clutch Alignment Tool - 10-Spline - 1 3/8" - .590" Pilot

Clutch Alignment Tool - E46 E60 E83 X3 E53 X5

Spec Stage 2 Clutch Kit - BMW E46 6spd 03-06

Spec

E46 330i SPEC Stage 2+ Performance Clutch Kit

E46 M3 JB Racing Ultra-Light Racing Clutch/Flywheel Assembly ...

Spec Stage 2+ Clutch Kit - BMW E46 6spd 03-06

SPEC Clutch Stage 3+ Performance Clutch Kit (For OE Dual Mass Flywhee...

SPEC - BMW E46 Clutch SB803HS

Spec Sprung Disc Replacement (For SB662 Clutch Kit) DISC ONLY - 01-...

JB Racing Lightweight Steel Flywheel - Grand-Am Legal - E46, MZ3, Z4 ...

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