Collection: Drivetrain Upgrades For Subaru Legacy B4 BL
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Competition Clutch Street Series 2100 Clutch Kit | Multiple Fitments (15021-2100)
Vendor:Competition ClutchRegular price $465.29 USDRegular priceUnit price / per$565.00 USDSale price $465.29 USDSale -
Moog Rear Hub Assembly | Subaru BRZ (13-19) (512401)
Vendor:MoogRegular price $138.40 USDRegular priceUnit price / per$214.67 USDSale price $138.40 USDSale -
ACT Heavy Duty Race Rigid 4 Pad Clutch Kit | Multiple Subaru Fitments (SB11-HDR4)
Vendor:ACTRegular price $1,180.00 USDRegular priceUnit price / per$1,457.00 USDSale price $1,180.00 USDSale -
Action Clutch Stage 5 HD Clutch Kit + Lightened Flywheel for Subaru Legacy GT (05-12) (ACR-1848)
Vendor:Action ClutchRegular price $897.61 USDRegular priceUnit price / per$926.46 USDSale price $897.61 USDSale -
ACT 4-Pad Rigid Race Disc | Multiple Subaru Fitments (4240018)
Vendor:ACTRegular price $157.00 USDRegular priceUnit price / per$194.00 USDSale price $157.00 USDSale -
ACT Heavy Duty Race Rigid 4 Pad Clutch Kit with Monoloc | Subaru WRX/STi (04-21) (SB10-HDR4)
Vendor:ACTRegular price $781.00 USDRegular priceUnit price / per$964.00 USDSale price $781.00 USDSale -
ACT Extreme Race Rigid 4 Pad Clutch Kit | Multiple Subaru Fitments (SB11-XTR4)
Vendor:ACTRegular price $1,230.00 USDRegular priceUnit price / per$1,519.00 USDSale price $1,230.00 USDSale -
ACT Extreme Race Rigid 4 Pad Solid Disc Clutch Kit | Subaru STI (04-21) (SB10-XTR4)
Vendor:ACTRegular price $823.00 USDRegular priceUnit price / per$1,016.00 USDSale price $823.00 USDSale -
Action Clutch Stage 3 Clutch Kit | Subaru Legacy GT 05-12 2.5L Turbo AWD (ACR-1846)
Vendor:Action ClutchRegular price $835.85 USDRegular priceUnit price / per$862.71 USDSale price $835.85 USDSale -
Action Clutch Stage 3 Clutch Kit for Subaru Legacy GT Spec B (03-09) 2.5L Turbo (ACR-1846-B) w/HW
Vendor:Action ClutchRegular price $835.85 USDRegular priceUnit price / per$862.71 USDSale price $835.85 USDSale -
Exedy Stage 1 Organic Clutch | Multiple Fitments (15801)
Vendor:ExedyRegular price $206.33 USDRegular priceUnit price / per$283.71 USDSale price $206.33 USDSale -
Clutch Masters FX350 HD Street/Race Clutch Kit | 2004-2019 Subaru STI (15017-HDFF)
Vendor:Clutch MastersRegular price $680.00 USDRegular priceUnit price / per$850.00 USDSale price $680.00 USDSale -
Competition Clutch Stage 2 Clutch Kit | 2005-2011 Subaru Legacy GT (15026-RK-2100)
Vendor:Competition ClutchRegular price $630.00 USDRegular priceUnit price / per$765.00 USDSale price $630.00 USDSale -

ACT HD/Race 6 Pad Clutch Kit | Subaru Impreza/Legacy/Forester/Outback/B9 Tribeca (92-25) (SB12-HDG6)
Vendor:ACTRegular price $1,176.48 USDRegular priceUnit price / per$1,548.00 USDSale price $1,176.48 USDSale -
ACT Heavy Duty Race Rigid 4 Pad Clutch Kit | Multiple Subaru Fitments (SB5-HDR4)
Vendor:ACTRegular price $916.00 USDRegular priceUnit price / per$1,131.00 USDSale price $916.00 USDSale -
ACT Heavy Duty Race Rigid 6 Pad Pressure Plate Clutch | Subaru WRX (06-21) (SB5-HDR6)
Vendor:ACTRegular price $954.00 USDRegular priceUnit price / per$1,178.00 USDSale price $954.00 USDSale -
Whiteline KDT901 Gearbox Shift Bushings | Subaru WRX/STI, Forester XT (04-23) (KDT901)
Vendor:WhitelineRegular price $54.28 USDRegular priceUnit price / per$77.88 USDSale price $54.28 USDSale -
ACT Heavy Duty Race Sprung 4 Puck Disc Clutch Kit | Subaru WRX (06-21) (SB5-HDG4)
Vendor:ACTRegular price $971.00 USDRegular priceUnit price / per$1,199.00 USDSale price $971.00 USDSale -
Whiteline Rear Diff - Mount in Cradle Bushing | Multiple Fitments (KDT906)
Vendor:WhitelineRegular price $54.28 USDRegular priceUnit price / per$77.88 USDSale price $54.28 USDSale -
Whiteline Rear Differential Mount-In Cradle Bushings | Multiple Subaru Fitments (KDT903)
Vendor:WhitelineRegular price $54.99 USDRegular priceUnit price / per$78.88 USDSale price $54.99 USDSale
Drivetrain Upgrades for Subaru Legacy B4 BL: Enhance Power and Durability
Optimize your Subaru Legacy B4 BL’s performance with our specialized drivetrain upgrades collection. Designed to improve power delivery, response, and reliability, these parts are precision-engineered for your Legacy B4 BL to ensure seamless fitment and confident installation.
What are the key benefits of upgrading your Legacy B4 BL drivetrain?
Upgrading drivetrain components can significantly improve how your Legacy B4 BL transfers power to the wheels, resulting in smoother acceleration and better overall responsiveness. Enhanced durability also reduces the risk of premature wear or failure, especially under spirited driving or increased power levels.
- Improved clutch engagement for more precise power transfer
- Stronger axles and differential parts to handle increased torque
- Upgraded mounts and shifters for a more direct and solid shifting feel
How to choose the right drivetrain components for your Subaru Legacy B4 BL?
Selecting the right parts depends on your driving goals and current setup. Consider clutch and flywheel upgrades if you want sharper engagement and quicker throttle response. Transmission mounts and shifters improve shifting feel and reduce drivetrain movement. For enhanced reliability, look for reinforced axles and differential components designed to withstand higher stress.
Why shop drivetrain upgrades for Subaru Legacy B4 BL at WheelFlip?
WheelFlip offers a curated selection of drivetrain parts tailored specifically for the Legacy B4 BL, ensuring proper fitment and performance. Our collection focuses on quality aftermarket components that balance durability and drivability, helping you unlock smoother power delivery and longer drivetrain life. Explore our drivetrain upgrades today to elevate your Subaru’s performance with confidence.


