BMW Drivetrain Parts for BMW A90 MKV Supra B58 3.0L

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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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Powerflex Transmission Mount Bushing - Street
Powerflex Transmission Mount Bushing - Street
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Powerflex - Corporate Logo
T#:9771556
Part#: PFF5-4655
In Stock
$ 118.99 USD
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$ 118.99 USD
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Secure your gearbox and sharpen shifting response. These 150% stiffer polyurethane transmission mounts isolate drivetrain twist to protect against track mis-shifts and maximize corner-exit power delivery
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SPEC Clutch Kit With Billet Single Mass Flywheel - Stage 3
SPEC Clutch Kit With Billet Single Mass Flywheel - Stage 3
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:41931290
Part#: SBB58A2STG3KT
Ships in 4 Business Days
$ 1,675.99

This product was last offered at the strikethrough price on
03-04-2026

$ 1,668.99 USD
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$ 1,668.99 USD
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The SPEC Clutch Kit With Billet Single Mass Flywheel - Stage 3 is the smart choice for BMW drivers demanding uncompromised performance and dependable power delivery for both street and sport applications.
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SPEC Performance Clutch Kit With Billet Single Mass Flywheel - Stage 5
SPEC Performance Clutch Kit With Billet Single Mass Flywheel - Stage ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:42099841
Part#: SBB58A2STG5KT
Ships in 4 Business Days
$ 1,875.99

This product was last offered at the strikethrough price on
03-04-2026

$ 1,868.99 USD
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$ 1,868.99 USD
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This Clutch kit is rebuildable, offering long-term reliability for BMW owners pushing their vehicles to the extreme. For drivers seeking uncompromised power transfer and race-ready performance, the Stage 5 clutch kit is the ultimate choice.
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SPEC Performance Clutch Kit With Billet Single Mass Flywheel - Stage 4
SPEC Performance Clutch Kit With Billet Single Mass Flywheel - Stage ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:42099840
Part#: SBB58A2STG4KT
Ships in 4 Business Days
$ 1,675.99

This product was last offered at the strikethrough price on
03-04-2026

$ 1,668.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 1,668.99 USD
Free Shipping on orders $49 and up
Add to Wish List
This Clutch kit is rebuildable, ensuring long-term reliability and performance for BMW owners pushing their vehicles to the limit. For drivers seeking a balance between race-ready performance and street drivability, this Stage 4 clutch kit is the ultimate upgrade.
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Powerflex Transmission Mount Bushing - Heritage Series
Powerflex Transmission Mount Bushing - Heritage Series
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Powerflex - Corporate Logo
T#:54388391
Part#: PFF5-4655H
Ships in 2 Business Days
New Item
$ 118.99 USD
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$ 118.99 USD
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Stabilize your gearbox under heavy cornering loads. These 70A durometer Heritage mounts increase rigidity by 150% to prevent shift-linkage binding, utilizing a discrete dark grey finish to blend into your undercarriage.
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SPEC Clutch Kit With Billet Single Mass Flywheel - Stage 2+
SPEC Clutch Kit With Billet Single Mass Flywheel - Stage 2+
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:41931286
Part#: SBB58A2STG2PKT
Ships in 4 Business Days
$ 1,715.99

This product was last offered at the strikethrough price on
03-04-2026

$ 1,708.99 USD
Free Shipping on orders $49 and up
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$ 1,708.99 USD
Free Shipping on orders $49 and up
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The SPEC Clutch Kit With Billet Single Mass Flywheel - Stage 2+ is engineered for BMW drivers who refuse to compromise between daily comfort and serious performance.
SPEC Clutch Kit With Billet Single Mass Flywheel - Stage 1
SPEC Clutch Kit With Billet Single Mass Flywheel - Stage 1
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:41931283
Part#: SBB58A2STG1KT
Ships in 4 Business Days
$ 1,559.99

This product was last offered at the strikethrough price on
03-04-2026

$ 1,552.99 USD
Free Shipping on orders $49 and up
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$ 1,552.99 USD
Free Shipping on orders $49 and up
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Whether upgrading your BMW's clutch system for the first time or replacing a worn-out OEM unit, the SPEC Clutch Kit With Billet Single Mass Flywheel – Stage 1 offers the perfect blend of daily comfort and performance reliability.
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SPEC Clutch Kit With Billet Single Mass Flywheel - Stage 3+
SPEC Clutch Kit With Billet Single Mass Flywheel - Stage 3+ ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:41931291
Part#: SBB58A2STG3PKT
Ships in 4 Business Days
$ 1,855.99

This product was last offered at the strikethrough price on
03-04-2026

$ 1,848.99 USD
Free Shipping on orders $49 and up
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$ 1,848.99 USD
Free Shipping on orders $49 and up
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The ultimate high-performance upgrade for BMW drivers seeking race-proven torque capacity, faster throttle response, and enhanced drivability for both street and track applications.
SPEC Clutch Kit With Billet Single Mass Flywheel – Stage 2
SPEC Clutch Kit With Billet Single Mass Flywheel – Stage 2 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:41931285
Part#: SBB58A2STG2KT
Ships in 4 Business Days
$ 1,666.99

This product was last offered at the strikethrough price on
03-04-2026

$ 1,659.99 USD
Free Shipping on orders $49 and up
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$ 1,659.99 USD
Free Shipping on orders $49 and up
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For BMW enthusiasts who demand more from their drivetrain without sacrificing comfort, the SPEC Clutch Kit With Billet Single Mass Flywheel – Stage 2 delivers the perfect balance of performance, durability, and everyday usability.
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Powerfex Transmission Mount Bushing - Performance
Powerfex Transmission Mount Bushing - Performance
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Powerflex - Corporate Logo
T#:9771557
Part#: PFF5-4655P
Ships in 2 Business Days
$ 118.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 118.99 USD
Free Shipping on orders $49 and up
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Lock down your gearbox centerline. These 80A durometer polyurethane mounts increase transmission rigidity by 260% using CNC-machined aluminum caps, eliminating high-RPM shifter twist and structural mis-shifts on track.
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Powerflex Transmission Mount Bushing - Black Series
Powerflex Transmission Mount Bushing - Black Series
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Powerflex - Corporate Logo
T#:54388342
Part#: PFF5-4655BLK
Back Ordered
New Item
$ 118.99 USD
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$ 118.99 USD
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Secure your gearbox geometry at the absolute limit. These 95A durometer Black Series mounts increase stiffness by 375%, preventing transmission twisting to ensure flawless shifting and maximum torque translation.
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