Collection: Engine Upgrades For Subaru WRX S4 VA
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Go Fast Bits HYBRID TMS Dual Port | Subaru WRX (14-21) / Forester XT (05-08)
Vendor:Go Fast BitsRegular price $186.47 USDRegular priceUnit price / per$260.90 USDSale price $186.47 USDSale -
Turbo XS Front Pipe Hardware Kit | Subaru WRX (14-21) / Impreza (07-12, 14-21) (W15-FP-HW)
Vendor:Turbo XSRegular price $30.41 USDRegular priceUnit price / per$42.00 USDSale price $30.41 USDSale -
Torque Solution Turbo Oil Feed Line Kit | Subaru EJ25 w/ Garrett GT Series Turbo (TS-SU-578)
Vendor:Torque SolutionRegular price $106.65 USDRegular priceUnit price / per$133.32 USDSale price $106.65 USDSale -
DeatschWerks DW400 Performance Module for 2015-21 WRX - 9-437-7250
Vendor:DeatschWerksRegular price $458.15 USDRegular priceUnit price / per$539.00 USDSale price $458.15 USDSale -
Turbosmart 15 Subaru WRX BOV Smart Port | Subaru Impreza / Forester / WRX (07-22) (TS-0215-1018)
Vendor:TurbosmartRegular price $347.93 USDRegular priceUnit price / per$454.99 USDSale price $347.93 USDSale -
Turbosmart IWG75 Internal Wastegate Actuator | Subaru Impreza WRX (15) (TS-0605-3072)
Vendor:TurbosmartRegular price $194.99 USDRegular priceUnit price / per$254.99 USDSale price $194.99 USDSale -
GSC Single Valve Spring Kit w/ Titanium Retainers | Subaru Multiple Fitments (5743)
Vendor:GSC Power DivisionRegular price $273.67 USDRegular priceUnit price / per$332.31 USDSale price $273.67 USDSale -
Perrin Diverter Valve - Red | 2022+ Subaru WRX / Ascent / Legacy / Outback (PSP-TAC-616RD)
Vendor:Perrin PerformanceRegular price $101.98 USDRegular priceUnit price / per$197.00 USDSale price $101.98 USDSale -
Aeromotive 450lph Drop-In Stealth Fuel System | Subaru WRX/STi (08-20) (AF18081)
Vendor:AeromotiveRegular price $970.73 USDRegular priceUnit price / per$970.73 USDSale price $970.73 USD -
Turbosmart IWG75 Internal Wastegate Actuator | Subaru Impreza WRX/STi (97-21) (TS-0605-1072)
Vendor:TurbosmartRegular price $194.99 USDRegular priceUnit price / per$254.99 USDSale price $194.99 USDSale -
Aeromotive 340lph Dual Drop-In Stealth Fuel System | Subaru WRX/STi (08-20) (AF18082)
Vendor:AeromotiveRegular price $1,027.81 USDRegular priceUnit price / per$1,027.81 USDSale price $1,027.81 USD -

Snow Performance Stage 2 Water Injection System w/o Tank | Subaru WRX (14-21) (SNO-2182-BRD-T)
Vendor:Snow PerformanceRegular price $860.31 USDRegular priceUnit price / per$1,312.51 USDSale price $860.31 USDSale -
Go Fast Bits GFB HYBRID TMS Dual Port 15+ | Subaru Impreza / Forester / WRX (07-12, 12-22, 14-21)
Vendor:Go Fast BitsRegular price $186.47 USDRegular priceUnit price / per$260.90 USDSale price $186.47 USDSale -
Snow Performance Throttle Body Spacer Injection Plate | Subaru WRX (14-21) (SNO-40082)
Vendor:Snow PerformanceRegular price $109.92 USDRegular priceUnit price / per$167.70 USDSale price $109.92 USDSale -
Aeromotive 340lph Drop-In Stealth Fuel System | Subaru WRX / STI (18080)
Vendor:AeromotiveRegular price $842.80 USDRegular priceUnit price / per$842.80 USDSale price $842.80 USD -
Fel-Pro 15-21 Subaru WRX / 13-20 BRZ / 13-16 Scion FR-S / 17-20 Toyota 86 Engine Oil Drain Plug Gasket | Universal
Vendor:Fel-ProRegular price $3.51 USDRegular priceUnit price / perSale price $3.51 USD -
DeatschWerks 12+ Subaru BRZ / 12+ Scion FRS / 15 WRX DW65C 265lph Compact In-Tank Fuel Pump | Subaru BRZ / Scion FRS / WRX (15) (9-651-1010)
Vendor:DeatschWerksRegular price $127.20 USDRegular priceUnit price / per$159.00 USDSale price $127.20 USDSale -
DeatschWerks 265 LPH In-Tank Fuel Pump | Subaru WRX (08-12) / STI (08-15) / LGT (05-09) (9-652-1008)
Vendor:DeatschWerksRegular price $127.20 USDRegular priceUnit price / per$159.00 USDSale price $127.20 USDSale -
Fel-Pro Turbocharger Outlet Gasket | Subaru WRX / Impreza / Legacy / Outback (89-21) (73560)
Vendor:Fel-ProRegular price $11.12 USDRegular priceUnit price / perSale price $11.12 USD -
Fel-Pro Engine Conversion Gasket Set | Subaru WRX / Outback (89-21) (CS26170)
Vendor:Fel-ProRegular price $50.02 USDRegular priceUnit price / perSale price $50.02 USD
Engine Upgrades for Subaru WRX S4 VA: Boost Power and Performance
Unlock the full potential of your Subaru WRX S4 VA with engine upgrades designed specifically for this model. Our collection focuses on enhancing power delivery, throttle response, and engine efficiency to elevate your driving experience. Whether you want to increase horsepower, improve reliability, or refine your exhaust note, these parts deliver targeted performance gains.
What are the benefits of upgrading your Subaru WRX S4 VA’s engine components?
Upgrading key engine components can significantly improve your WRX S4 VA’s responsiveness and overall power output. Performance intakes and exhausts optimize airflow, while tuning accessories help your engine run more efficiently under load. These upgrades also contribute to a more engaging driving experience by sharpening throttle response and enhancing engine sound.
- Improved air intake and exhaust flow for better combustion
- Enhanced throttle response and smoother power delivery
- Increased engine efficiency and potential for higher output
- Refined engine sound tailored to your preferences
How to choose the right engine upgrades for your Subaru WRX S4 VA?
Selecting the right parts depends on your performance goals and daily driving needs. Consider whether you want to focus on power gains, reliability, or sound enhancement. Intake and exhaust components are common starting points, while tuning accessories allow for precise engine management. Always ensure parts are designed for the WRX S4 VA platform to guarantee fitment and compatibility.
Supporting modifications and where to shop Subaru WRX S4 VA engine upgrades
Supporting modifications such as upgraded intercoolers, blow-off valves, and catch cans can complement your engine upgrades by improving cooling and reliability. Proper installation and tuning are essential to maximize benefits. Explore our curated selection of engine upgrades for the Subaru WRX S4 VA at WheelFlip to find quality aftermarket parts with fitment confidence and expert support.











