Collection: Drivetrain Upgrades For Subaru WRX S4 VA
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ACT Perf Street Sprung Clutch Kit | Subaru WRX (06-21) (SB11-XTSS)
Vendor:ACTRegular price $1,254.00 USDRegular priceUnit price / per$1,548.00 USDSale price $1,254.00 USDSale -
Action Clutch Stage 3 Clutch Kit | Subaru WRX 18-21 2.0L FA20DIT (ACR-1818-FW) (ACR-1818-FW)
Vendor:Action ClutchRegular price $802.91 USDRegular priceUnit price / per$828.71 USDSale price $802.91 USDSale -
ACT Heavy Duty Performance Street Sprung Disc Clutch Kit | Subaru WRX STI (04-21) (SB10-HDSS)
Vendor:ACTRegular price $833.00 USDRegular priceUnit price / per$1,028.00 USDSale price $833.00 USDSale -
ACT Heavy Duty Clutch Pressure Plate | Subaru WRX STI (04-21) (SB019)
Vendor:ACTRegular price $517.00 USDRegular priceUnit price / per$638.00 USDSale price $517.00 USDSale -
ACT Release Bearing | Multiple Mitsubishi/Subaru Fitments (RB601)
Vendor:ACTRegular price $96.00 USDRegular priceUnit price / per$118.00 USDSale price $96.00 USDSale -
ACT Mod-Twin 225 Heavy Duty Sprung Street Clutch Kit | Subaru WRX (13-23) (T1SS-S01)
Vendor:ACTRegular price $1,699.00 USDRegular priceUnit price / per$2,097.00 USDSale price $1,699.00 USDSale -
ACT Clutch Release Bearing | Subaru WRX (15-18) / Impreza WRX (06-11) (RB846)
Vendor:ACTRegular price $122.00 USDRegular priceUnit price / per$150.00 USDSale price $122.00 USDSale -
Exedy Hyper Multi Disc Assembly | Multiple Fitments (DL03R)
Vendor:ExedyRegular price $145.22 USDRegular priceUnit price / per$221.89 USDSale price $145.22 USDSale -
Perrin Shifter Stop Upgrade Kit 2015-2025 WRX
Vendor:Perrin PerformanceRegular price From $16.15 USDRegular priceUnit price / per$39.00 USDSale price From $16.15 USDSale -
Torque Solution Pitch Stop Brace | 2015-2019 Subaru WRX/STI (TS-SU-524)
Vendor:Torque SolutionRegular price $257.77 USDRegular priceUnit price / per$322.21 USDSale price $257.77 USDSale -
Perrin Perf Solid Shifter Bush | Subaru WRX/Forester/Crosstrek/Legacy (15-24)(PSP-INR-016)
Vendor:Perrin PerformanceRegular price $20.19 USDRegular priceUnit price / per$39.00 USDSale price $20.19 USDSale -
Perrin Perf Short Shifter Adapter | Subaru WRX/Legacy/Forester (15-23)(PSP-INR-201)
Vendor:Perrin PerformanceRegular price $68.33 USDRegular priceUnit price / per$132.00 USDSale price $68.33 USDSale -
Perrin Clutch Line | 2015-2021 Subaru WRX/STI (PSP-BRK-305)
Vendor:Perrin PerformanceRegular price $37.27 USDRegular priceUnit price / per$72.00 USDSale price $37.27 USDSale -
Perrin CVT Mount Support | Subaru WRX 22+ / Legacy 20-23 / Forester 14-18 (PSP-DRV-161)
Vendor:Perrin PerformanceRegular price $30.02 USDRegular priceUnit price / per$58.00 USDSale price $30.02 USDSale -
Perrin Driveshaft Lockdown | 2022+ Subaru WRX (PSP-DRV-201)
Vendor:Perrin PerformanceRegular price $78.68 USDRegular priceUnit price / per$152.00 USDSale price $78.68 USDSale -
Whiteline Pitch Stop Mount | 2002-2023 Subaru WRX and 2004-2021 Subaru WRX STI (KBR39)
Vendor:WhitelineRegular price $101.68 USDRegular priceUnit price / per$145.88 USDSale price $101.68 USDSale -
Torque Solution Billet Rear Differential Brace | Multiple Fitments (TS-SU-427BK)
Vendor:Torque SolutionRegular price From $231.11 USDRegular priceUnit price / per$288.88 USDSale price From $231.11 USDSale -

Torque Solution Engine/Trans/Pitch Mount Kit | Subaru WRX (02-14)/STI (04-21) (TS-SU-123PR.2)
Vendor:Torque SolutionRegular price $559.99 USDRegular priceUnit price / per$699.99 USDSale price $559.99 USDSale -

Torque Solution Engine/Trans/Pitch Mount Kit | Subaru WRX (02-14)/STI (04-21) (TS-SU-123PR.2-PL)
Vendor:Torque SolutionRegular price $639.99 USDRegular priceUnit price / per$799.99 USDSale price $639.99 USDSale -
Torque Solution Short Shifter & Bushings Combo | 2004-2016 Subaru WRX STI (TS-SS-001)
Vendor:Torque SolutionRegular price From $142.22 USDRegular priceUnit price / per$177.77 USDSale price From $142.22 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.
















