Collection: Engine Upgrades For Subaru WRX S4 VA
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GFB Deceptor Pro Blow Off Valve Kit | Subaru WRX / Impreza / Legacy / Outback / Forester (89-21)
Vendor:Go Fast BitsRegular price $375.36 USDRegular priceUnit price / per$525.20 USDSale price $375.36 USDSale -
DeatschWerks 02+ Subaru WRX / 07+ STI / LGT Top Feed Fuel Rail Upgrade Kit w/ 2200cc Injectors | Subaru WRX / STI / LGT (02+ / 07+)
Vendor:DeatschWerksRegular price $930.82 USDRegular priceUnit price / per$989.00 USDSale price $930.82 USDSale -
AMS 2015+ Subaru WRX FA20 Front Mount Intercooler Kit | Subaru WRX (15+) (AMS.36.09.0001-5)
Vendor:AMSRegular price $1,699.85 USDRegular priceUnit price / per$1,699.85 USDSale price $1,699.85 USD -
Fel-Pro Turbocharger Inlet Gasket | Subaru WRX (2009-2021) (73561)
Vendor:Fel-ProRegular price $5.29 USDRegular priceUnit price / perSale price $5.29 USD -
AMS Performance Front Mount Intercooler | Subaru Impreza (07-12) / WRX (14-21) (AMS.36.09.0001-1)
Vendor:AMSRegular price $823.48 USDRegular priceUnit price / per$874.95 USDSale price $823.48 USDSale -
DeatschWerks 1200cc Fuel Injectors | Subaru WRX / STI / Legacy GT (02-14 / 07-14) (16MX-07-1200-4)
Vendor:DeatschWerksRegular price $535.53 USDRegular priceUnit price / per$569.00 USDSale price $535.53 USDSale -
Turbo XS Boost Control Solenoid Kit | Subaru WRX STi (00-21) (WS08-BCS)
Vendor:Turbo XSRegular price $107.88 USDRegular priceUnit price / per$149.00 USDSale price $107.88 USDSale -
GFB 15+ TMS Respons Blow Off Valve Kit | Subaru WRX/Impreza/Forester (07-22) (T9007)
Vendor:Go Fast BitsRegular price $254.79 USDRegular priceUnit price / per$356.50 USDSale price $254.79 USDSale -

DeatschWerks 1500cc Fuel Injectors | Subaru WRX / Legacy GT / STI (02-14/07-14) (16M-07-1500-4)
Vendor:DeatschWerksRegular price $808.47 USDRegular priceUnit price / per$859.00 USDSale price $808.47 USDSale -
AMS 2015+ Subaru WRX FA20 Front Mount Intercooler Piping & Hardware Kit | Subaru WRX
Vendor:AMSRegular price $456.42 USDRegular priceUnit price / per$484.95 USDSale price $456.42 USDSale -
DeatschWerks Top Feed Fuel Rail Upgrade Kit | Subaru WRX / STI / LGT (02+) w/ 1200cc Injectors (6-102-1200)
Vendor:DeatschWerksRegular price $657.88 USDRegular priceUnit price / per$699.00 USDSale price $657.88 USDSale -
DeatschWerks Top Feed Fuel Rail Upgrade Kit w/ 1500cc Injectors | Subaru WRX (02+) / STI (07+) / LGT (00+)
Vendor:DeatschWerksRegular price $893.18 USDRegular priceUnit price / per$949.00 USDSale price $893.18 USDSale -
DeatschWerks 02+ Subaru WRX / 07+ STI/LGT Top Feed Fuel Rail Upgrade Kit w/ 1000cc Injectors | (6-102-1000)
Vendor:DeatschWerksRegular price $582.59 USDRegular priceUnit price / per$619.00 USDSale price $582.59 USDSale -
Radium Engineering RA-Series Fuel Pressure Regulator Kit | Subaru WRX (20-0965)
Vendor:Radium EngineeringRegular price $222.32 USDRegular priceUnit price / per$269.95 USDSale price $222.32 USDSale -
Fel-Pro Engine Camshaft Plug Set | Subaru WRX (13-14) / WRX STI (13-20) / Outback (00-12)
Vendor:Fel-ProRegular price $6.04 USDRegular priceUnit price / perSale price $6.04 USD -
Fel-Pro Throttle Body Mounting Gasket | Subaru WRX STI / Forester (13-20) (61359)
Vendor:Fel-ProRegular price $4.86 USDRegular priceUnit price / perSale price $4.86 USD -
DeatschWerks 02+ Subaru WRX / 07+ STI/LGT Top Feed Fuel Rail Upgrade Kit | Subaru WRX / STI / LGT (6-102-0750)
Vendor:DeatschWerksRegular price $563.76 USDRegular priceUnit price / per$599.00 USDSale price $563.76 USDSale -
DeatschWerks 1000cc Bosch EV14 Fuel Injectors | Subaru WRX (02-12) / STi (07-12) / Legacy GT (07-12) (17U-07-1000-4)
Vendor:DeatschWerksRegular price $441.41 USDRegular priceUnit price / per$469.00 USDSale price $441.41 USDSale -
Fel-Pro Engine Water Pump Gasket | Subaru WRX / BRZ / Scion FR-S / Toyota 86 (07-23) (36042)
Vendor:Fel-ProRegular price $5.04 USDRegular priceUnit price / perSale price $5.04 USD -
Turbosmart Kompact Plumb Back BOV | Subaru WRX (08+) TS-0203-1210
Vendor:TurbosmartRegular price $206.09 USDRegular priceUnit price / per$228.99 USDSale price $206.09 USDSale
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.











