Collection: Engine Upgrades For Subaru Impreza WRX STI GD
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COBB AccessPORT V3 ECU Tuner | Subaru WRX (02-05) (AP3-SUB-001)
Vendor:COBBRegular price $735.00 USDRegular priceUnit price / per$735.00 USDSale price $735.00 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 3-Port Boost Control Solenoid | Subaru WRX (02-07) / STI (04-07) / Forester XT (04-08) (712750)
Vendor:COBBRegular price $190.00 USDRegular priceUnit price / per$190.00 USDSale price $190.00 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 -
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 12+ Subaru BRZ/12+ Scion FRS / 15 WRX DW65C 265lph Compact In-Tank Fuel Pump
Vendor:DeatschWerksRegular price $135.15 USDRegular priceUnit price / per$159.00 USDSale price $135.15 USDSale -
DeatschWerks 02+ Subaru WRX / 07+ STI/LGT Top Feed Fuel Rail Upgrade Kit w/ 1000cc Injectors
Vendor:DeatschWerksRegular price $619.00 USDRegular priceUnit price / per$619.00 USDSale price $619.00 USD -
DeatschWerks 02+ Subaru WRX / 07+ STI/LGT Top Feed Fuel Rail Upgrade Kit w/ 750cc Injectors
Vendor:DeatschWerksRegular price $599.00 USDRegular priceUnit price / per$599.00 USDSale price $599.00 USD -
DeatschWerks 02+ Subaru WRX / 07+ STI/LGT Top Feed Fuel Rail Upgrade Kit w/ 1200cc Injectors
Vendor:DeatschWerksRegular price $699.00 USDRegular priceUnit price / per$699.00 USDSale price $699.00 USD -
HKS Turbo Timer X Series Harness | Subaru Forester XT (04-08) / Impreza RS (97-00) (4103-RF001)
Vendor:HKSRegular price $18.82 USDRegular priceUnit price / per$20.00 USDSale price $18.82 USDSale -
DeatschWerks 04-07 Subaru WRX/STI/Outback Sport / 04-08 Forester - 40 Micron Fuel Filter
Vendor:DeatschWerksRegular price $81.60 USDRegular priceUnit price / per$96.00 USDSale price $81.60 USDSale -
Cometic 100mm Bore MLS Headgasket .040" | Subaru 90-01 Impreza/Legacy 2.0/2.5L (H1631SPK040S)
Vendor:Cometic GasketRegular price $47.38 USDRegular priceUnit price / per$57.59 USDSale price $47.38 USDSale -
HKS Fine Tune Upgraded Timing Belt | Subaru WRX/STI/Legacy GT/Forester XT (24999-AF001)
Vendor:HKSRegular price $286.59 USDRegular priceUnit price / per$290.00 USDSale price $286.59 USDSale -
DeatschWerks 05-09 Subaru Legacy GT / 08-14 WRX / 08-21 STI DW430C 430lph Compact Fuel Pump
Vendor:DeatschWerksRegular price $186.15 USDRegular priceUnit price / per$219.00 USDSale price $186.15 USDSale -
HKS SSQV4 Blow Off Valve Kit | Subaru WRX (08-14) / Legacy 2.5 GT (05-06) (71008-AF012)
Vendor:HKSRegular price $408.94 USDRegular priceUnit price / per$434.50 USDSale price $408.94 USDSale -
HKS SSQV4 BOV | Subaru WRX/WRX STI/Forester 2.5 XT (02-08) (71008-AF006)
Vendor:HKSRegular price $408.94 USDRegular priceUnit price / per$434.50 USDSale price $408.94 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 Subaru WRX / 07-14 STI/Legacy GT Bosch EV14 1200cc Injectors (Set of 4)
Vendor:DeatschWerksRegular price $569.00 USDRegular priceUnit price / per$569.00 USDSale price $569.00 USD
Engine Upgrades for Subaru Impreza WRX STI GD to Unlock Enhanced Performance
Designed specifically for the Subaru Impreza WRX STI GD platform, this collection offers a focused selection of engine upgrades that improve power delivery, throttle response, and overall driving experience. Whether you want to increase horsepower, boost reliability, or refine engine sound, these parts are engineered to fit your WRX STI’s unique specifications.
What are the key engine upgrades for the Subaru Impreza WRX STI GD?
Upgrading your WRX STI GD’s engine involves several core components that work together to enhance performance. Popular upgrades include high-flow performance intakes that improve air delivery, exhaust headers designed to reduce backpressure, and turbocharger enhancements that increase boost efficiency. Engine management solutions like standalone ECUs or piggyback systems help optimize tuning for these modifications.
- Performance air intakes for improved airflow and throttle response
- Aftermarket exhaust headers to maximize exhaust flow
- Turbo upgrades for increased boost and power potential
- Engine management systems for precise tuning and reliability
How do I choose the right engine upgrade for my WRX STI GD build?
Selecting the right engine parts depends on your performance goals and how you use your vehicle. For street-driven builds, focus on upgrades that balance power gains with daily drivability and reliability. Track or competition builds may require more aggressive turbo setups and advanced engine management. Consider supporting modifications such as upgraded fuel systems and cooling components to maintain engine health.
Why shop engine upgrades for Subaru Impreza WRX STI GD at WheelFlip?
WheelFlip offers a curated selection of engine upgrades tailored for the WRX STI GD platform, ensuring fitment confidence and quality. Our parts are chosen to help enthusiasts unlock their vehicle’s full potential while maintaining a balanced driving experience. Explore our collection to find performance intakes, turbo upgrades, exhaust components, and tuning solutions designed for your Subaru’s unique needs.














