Collection: Engine Upgrades For Subaru WRX S4 VA
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COBB AccessPORT V3 ECU Tuner | Subaru WRX/STI (08-14) / Legacy GT (07-12) / Forester XT (07-13) / Outback XT (07-09) (AP3-SUB-003)
Vendor:COBBRegular price $770.00 USDRegular priceUnit price / per$770.00 USDSale price $770.00 USD -
COBB 3-Port Boost Control Solenoid | Subaru WRX/STI (08-21) / Legacy GT/Outback XT (05-09) (715750)
Vendor:COBBRegular price $185.00 USDRegular priceUnit price / per$185.00 USDSale price $185.00 USD -
COBB LF Bypass Valve | Subaru WRX (02-07) / STI (04-21) / Forester XT (06-08) (712665)
Vendor:COBBRegular price $375.00 USDRegular priceUnit price / per$375.00 USDSale price $375.00 USD -
COBB LF Bypass Valve | Subaru WRX (08-14) / Legacy GT / Forester XT / Outback XT (724665)
Vendor:COBBRegular price $405.00 USDRegular priceUnit price / per$405.00 USDSale price $405.00 USD -
COBB Pitch Stop Mount w/ Bushings | Subaru WRX/STI/LGT/FXT (02-25) (862001)
Vendor:COBBRegular price $125.00 USDRegular priceUnit price / per$125.00 USDSale price $125.00 USD -
Torque Solution Urethane Engine Mounts | Subaru WRX STI 04-18 (TS-SU-200-RP-UR)
Vendor:Torque SolutionRegular price $7.99 USDRegular priceUnit price / per$9.99 USDSale price $7.99 USDSale -
COBB Aluminum Alternator Cover | Subaru WRX (08-14) / STI (08-21) (815055)
Vendor:COBBRegular price $105.00 USDRegular priceUnit price / per$105.00 USDSale price $105.00 USD -
COBB 2.5" Cold Pipe Kit | Subaru WRX (15-21) (741500-C)
Vendor:COBBRegular price $480.00 USDRegular priceUnit price / per$480.00 USDSale price $480.00 USD -
COBB 2.5" Hot Pipe Kit | Subaru WRX (15-21) (741500-H)
Vendor:COBBRegular price $370.00 USDRegular priceUnit price / per$370.00 USDSale price $370.00 USD -
COBB 24"x11"x4" FMIC Core Black Bar & Plate | Subaru WRX/STI (15-21) (716500-BK)
Vendor:COBBRegular price $1,150.00 USDRegular priceUnit price / per$1,150.00 USDSale price $1,150.00 USD -
COBB 24"x11"x4" FMIC Core Silver Bar & Plate | Subaru WRX/STI (15-21) (716500-SL)
Vendor:COBBRegular price $1,150.00 USDRegular priceUnit price / per$1,150.00 USDSale price $1,150.00 USD -
COBB 1050x Top Feed Fuel Injectors | Subaru WRX (02-14) / WRX STI (07-21) / Legacy GT / Forester XT (312150)
Vendor:COBBRegular price $625.00 USDRegular priceUnit price / per$625.00 USDSale price $625.00 USD -
DeatschWerks 22-24 Subaru WRX / 21-24 BRZ/GR86 DW300C Series 340lph Compact Fuel Pump W/ Install Kit
Vendor:DeatschWerksRegular price $189.00 USDRegular priceUnit price / per$189.00 USDSale price $189.00 USD -
DeatschWerks Toyota / Subaru Performance In-Tank Regulator - High Performance 4.5 BAR
Vendor:DeatschWerksRegular price $35.10 USDRegular priceUnit price / per$39.00 USDSale price $35.10 USDSale -

DeatschWerks 265 LPH Compact In-Tank Fuel Pump w/ 08-12 WRX/ 08-15 STi / 05-09 LGT Set Up Ki
Vendor:DeatschWerksRegular price $135.15 USDRegular priceUnit price / per$159.00 USDSale price $135.15 USDSale -
DeatschWerks 340lph DW300C Compact Fuel Pump w/ 12+ Scion FR-S/BRZ / 15 WRX Set Up Kit
Vendor:DeatschWerksRegular price $160.65 USDRegular priceUnit price / per$189.00 USDSale price $160.65 USDSale -
DeatschWerks 02-12 Subaru WRX / 07-12 Legacy GT/STI 2200cc Injectors (set of 4)
Vendor:DeatschWerksRegular price $859.00 USDRegular priceUnit price / per$859.00 USDSale price $859.00 USD -
DeatschWerks 02-14 WRX / 07-15 STi / 07-12 LGT EJ20/EJ25 650cc Top Feed Injectors - Set of 4
Vendor:DeatschWerksRegular price $389.00 USDRegular priceUnit price / per$389.00 USDSale price $389.00 USD -
DeatschWerks 02-14 WRX / 07-15 STi / 07-14 LGT Bosch EV14 750cc Injectors
Vendor:DeatschWerksRegular price $439.00 USDRegular priceUnit price / per$439.00 USDSale price $439.00 USD -
DeatschWerks Subaru 02-14 WRX/ 07-14 STI and Legacy GT Top Feed Fuel Rails
Vendor:DeatschWerksRegular price $199.00 USDRegular priceUnit price / per$199.00 USDSale price $199.00 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.












