Collection: Engine Upgrades For Subaru WRX S4 VA
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GFB Respons Blow Off Valve Kit | Subaru WRX (02-07) / STI (04-10) (T9003)
Vendor:Go Fast BitsRegular price $254.79 USDRegular priceUnit price / per$356.50 USDSale price $254.79 USDSale -
Snow Performance Stage 2 Water Injection System | Subaru WRX (14-21) (SNO-2182-BRD)
Vendor:Snow PerformanceRegular price $817.29 USDRegular priceUnit price / per$1,312.51 USDSale price $817.29 USDSale -
Go Fast Bits 3 pc Underdrive/Non-Underdrive Pulley Kit | Subaru WRX (08+) / WRX STI / Forester (09+) / LGT (03-09) (2014)
Vendor:Go Fast BitsRegular price $272.24 USDRegular priceUnit price / per$380.90 USDSale price $272.24 USDSale -
Fel-Pro Crankshaft Seal | Subaru WRX/Impreza/Legacy/Outback (TCS46009)
Vendor:Fel-ProRegular price $10.04 USDRegular priceUnit price / perSale price $10.04 USD -
Turbo XS Up-Pipe Hardware Kit | Subaru WRX/STi (WS-UP-HW)
Vendor:Turbo XSRegular price $20.59 USDRegular priceUnit price / per$29.00 USDSale price $20.59 USDSale -
Fel-Pro PermaTorque Cylinder Head Gasket Set | Subaru WRX STI (13-18) / Impreza (07-14) (HS26531PT)
Vendor:Fel-ProRegular price $254.38 USDRegular priceUnit price / perSale price $254.38 USD -
Fel-Pro Turbocharger Mounting Gasket Set | Subaru WRX (13-14) / WRX STI (13-21) / Outback (05-09) (ES72745)
Vendor:Fel-ProRegular price $30.12 USDRegular priceUnit price / perSale price $30.12 USD -

Injen 13-20 Subaru BRZ 2.0L / 06-17 Subaru WRX/STI 2.0L/2.5L X-Pedal Pro Black Edition Throttle Cont
Vendor:InjenRegular price $189.37 USDRegular priceUnit price / per$243.75 USDSale price $189.37 USDSale -
DeatschWerks 08+ Subaru WRX/STI X2 Series Pump Module -8AN Feed w/ -6AN Return CPE Plumbing Kit
Vendor:DeatschWerksRegular price $636.65 USDRegular priceUnit price / per$749.00 USDSale price $636.65 USDSale -
Deatschwerks Set of 4 Bosch EV14 1250ccBosch EV14 Injectors for Subaru WRX 02-14
Vendor:DeatschWerksRegular price $569.00 USDRegular priceUnit price / per$569.00 USDSale price $569.00 USD -
DeatschWerks DW440 440lph Brushless Fuel Pump Single/Dual Controller w/ Install Kit 93-07 Subaru WRX
Vendor:DeatschWerksRegular price $449.65 USDRegular priceUnit price / per$529.00 USDSale price $449.65 USDSale -
Mishimoto Street Performance Top-Mount Intercooler Kit | Subaru Impreza/Forester/WRX (07-22) (MMTMIC-WRX-15XBK)
Vendor:MishimotoRegular price $626.78 USDRegular priceUnit price / per$733.00 USDSale price $626.78 USDSale -

Mishimoto 2015 Subaru WRX Top-Mount Intercooler | Subaru Impreza / WRX (14-21) (MMTMIC-WRX-15BK)
Vendor:MishimotoRegular price $944.89 USDRegular priceUnit price / per$1,104.00 USDSale price $944.89 USDSale -

Mishimoto Top-Mount Intercooler Shroud | Subaru Impreza/Forester/WRX (07-22) (MMTMIC-WRX-15XSHR)
Vendor:MishimotoRegular price $107.25 USDRegular priceUnit price / per$125.00 USDSale price $107.25 USDSale -
Mishimoto 15+ Subaru WRX Front-Mount Intercooler Kit | Subaru Impreza / WRX (07-12 / 14-21) (MMINT-WRX-15BK)
Vendor:MishimotoRegular price $1,529.36 USDRegular priceUnit price / per$1,787.00 USDSale price $1,529.36 USDSale -
Mishimoto Street Performance Top-Mount Intercooler Kit | Subaru Impreza/Forester/WRX (07-22) (MMTMIC-WRX-15XSL)
Vendor:MishimotoRegular price $626.78 USDRegular priceUnit price / per$733.00 USDSale price $626.78 USDSale -
DeatschWerks 02-14 Subaru WRX / 07-14 Legacy GT / 07-14 STI Bosch EV14 1500cc Injectors (Set of 4)
Vendor:DeatschWerksRegular price $859.00 USDRegular priceUnit price / per$859.00 USDSale price $859.00 USD -
DeatschWerks 02+ Subaru WRX / 07+ STI/LGT Top Feed Fuel Rail Upgrade Kit w/ 2200cc Injectors
Vendor:DeatschWerksRegular price $989.00 USDRegular priceUnit price / per$989.00 USDSale price $989.00 USD -
DeatschWerks Set of 4 2400cc Injectors for Subaru WRX 02-14/Legacy GT 07-12/STI 07-15
Vendor:DeatschWerksRegular price $989.00 USDRegular priceUnit price / per$989.00 USDSale price $989.00 USD -
BLOX Racing Pitch Stop Brace | Multiple Subaru Fitments (BXSS-50101-BK)
Vendor:BLOX RacingRegular price $80.88 USDRegular priceUnit price / per$125.00 USDSale price $80.88 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.















