Collection: Drivetrain Upgrades For Subaru WRX S4 VA
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Exedy OE Clutch Kit | 2004-2018 Subaru WRX STI (FJK1000)
Vendor:ExedyRegular price $340.45 USDRegular priceUnit price / per$400.54 USDSale price $340.45 USDSale -

Cusco Rear Differential Carrier | 2015-2022 Subaru WRX and 2015-2021 Subaru WRX STI (6A1 489 A)
Vendor:CuscoRegular price $166.50 USDRegular priceUnit price / per$185.00 USDSale price $166.50 USDSale -
Perrin Shifter Detent Kit 2015-2025 WRX / 2018-2023 Crosstrek
Vendor:Perrin PerformanceRegular price $35.25 USDRegular priceUnit price / per$47.00 USDSale price $35.25 USDSale -
Perrin Clutch Line | 2015-2021 Subaru WRX/STI (PSP-BRK-305)
Vendor:Perrin PerformanceRegular price $54.00 USDRegular priceUnit price / per$72.00 USDSale price $54.00 USDSale -
Competition Clutch Replacement Disc Only | Multiple Subaru Fitments (99707-S-2600)
Vendor:Competition ClutchRegular price $201.76 USDRegular priceUnit price / per$245.00 USDSale price $201.76 USDSale -

Competition Clutch Stage 4 Sprung 1620 Series Clutch Kit | 2004-2016 Subaru STI (15030-1620)
Vendor:Competition ClutchRegular price $576.47 USDRegular priceUnit price / per$700.00 USDSale price $576.47 USDSale -
Torque Solution Pitch Stop Brace | 2015-2019 Subaru WRX/STI (TS-SU-524)
Vendor:Torque SolutionRegular price $265.35 USDRegular priceUnit price / per$322.21 USDSale price $265.35 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 -
Exedy Hyper Series Accessory Kit | Multiple Fitments (FJAK101)
Vendor:ExedyRegular price $64.78 USDRegular priceUnit price / per$76.21 USDSale price $64.78 USDSale -
Action Clutch Stage 4 (1MD) Clutch Kit | Subaru WRX (14-21) (ACR-1819-FW)
Vendor:Action ClutchRegular price $811.14 USDRegular priceUnit price / per$837.21 USDSale price $811.14 USDSale -
Action Clutch Stage 3 (1MS) Clutch Kit | Subaru WRX (14-21) (ACR-1818-FFW)
Vendor:Action ClutchRegular price $667.02 USDRegular priceUnit price / per$688.46 USDSale price $667.02 USDSale -
Action Clutch Stage 5 Clutch Kit | Subaru WRX STI 2.5L (EJ257) (ACR-1806-884006P)
Vendor:Action ClutchRegular price $724.67 USDRegular priceUnit price / per$747.96 USDSale price $724.67 USDSale -
Action Clutch Stage 6 Clutch w/ Lightened Flywheel | Subaru WRX 2.0L (FA20DIT) (ACR-1821-FW)
Vendor:Action ClutchRegular price $893.49 USDRegular priceUnit price / per$922.21 USDSale price $893.49 USDSale -
Action Clutch Stage 3 Clutch Kit | Subaru WRX (04-21) (ACR-1804-884006P)
Vendor:Action ClutchRegular price $683.49 USDRegular priceUnit price / per$705.46 USDSale price $683.49 USDSale -
Action Clutch Ironman Sprung Clutch Kit Subaru WRX 2015-18 (ACR-1822)
Vendor:Action ClutchRegular price From $699.96 USDRegular priceUnit price / per$722.46 USDSale price From $699.96 USDSale -
Action Clutch Stage 4 Clutch Kit Subaru WRX 15-18 2.0L DOHC Turbo (FA20DIT) (ACR-1819)
Vendor:Action ClutchRegular price $514.67 USDRegular priceUnit price / per$531.21 USDSale price $514.67 USDSale -
Action Clutch Ironman Sprung Clutch Kit Subaru WRX STI 04-21 (ACR-1808)
Vendor:Action ClutchRegular price From $720.55 USDRegular priceUnit price / per$743.71 USDSale price From $720.55 USDSale -
Action Clutch Stage 5 6-Puck Clutch Kit for Subaru WRX STI (04-21) 2.5L (ACR-1806)
Vendor:Action ClutchRegular price $658.79 USDRegular priceUnit price / per$679.96 USDSale price $658.79 USDSale -

Action Clutch Ironman Sprung Street Clutch Kit | Subaru WRX 06-14 2.5L DOHC Turbo AWD (ACR-1815-SPR)
Vendor:Action ClutchRegular price $699.96 USDRegular priceUnit price / per$722.46 USDSale price $699.96 USDSale -
Competition Clutch Stock Clutch OEM Kit | 04-11 Subaru STI (15030-STOCK)
Vendor:Competition ClutchRegular price $452.94 USDRegular priceUnit price / per$550.00 USDSale price $452.94 USDSale
Enhance Your Subaru WRX S4 VA with Premium Drivetrain Upgrades
Optimize your Subaru WRX S4 VA’s performance with drivetrain upgrades designed to improve power delivery, response, and durability. This collection offers carefully selected components that address clutch engagement, shifting precision, and differential efficiency to elevate your driving experience.
What are the benefits of upgrading your WRX S4 VA clutch and flywheel?
Upgrading clutch and flywheel assemblies can significantly improve throttle response and shift feel by reducing rotational mass and increasing engagement precision. These components help your WRX handle increased power and aggressive driving without sacrificing reliability.
- Quicker clutch engagement for faster gear changes
- Improved pedal feel and modulation
- Enhanced durability under high-stress conditions
How do precision shifters and reinforced mounts improve drivetrain performance?
Precision shifters reduce slop and provide a more direct connection between your hand and the transmission, resulting in smoother, more confident gear changes. Reinforced mounts minimize drivetrain movement, which helps maintain alignment and reduces wear on components, translating to better power transfer and longevity.
Which differential and axle upgrades should Subaru WRX S4 VA owners consider?
Upgraded axles and differential parts enhance traction and strength, especially under demanding driving conditions. Stronger axles resist bending or breaking, while improved differential components optimize power distribution to the wheels. Explore our selection to find parts tailored to your WRX S4 VA’s needs and elevate your drivetrain’s reliability and performance at WheelFlip.








