Collection: Engine Upgrades For Subaru Impreza WRX STI GD
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Perrin Top Mount Intercooler | 2022+ Subaru WRX (PSP-ITR-330)
Vendor:Perrin PerformanceRegular price $825.00 USDRegular priceUnit price / per$1,100.00 USDSale price $825.00 USDSale -
Perrin Charge Pipe Kit | 2022+ Subaru WRX (PSP-ITR-201)
Vendor:Perrin PerformanceRegular price $220.00 USDRegular priceUnit price / per$352.00 USDSale price $220.00 USDSale -
Perrin Front Mount Intercooler Kit | 2022+ Subaru WRX (PSP-ITR-441)
Vendor:Perrin PerformanceRegular price $1,278.75 USDRegular priceUnit price / per$1,705.00 USDSale price $1,278.75 USDSale -
Cusco Billet Aluminum Engine Pitch Stop Mount | Subaru WRX/STI/LGT/FXT (02-24) (6A1 911 PS)
Vendor:CuscoRegular price $136.00 USDRegular priceUnit price / per$170.00 USDSale price $136.00 USDSale -
Brian Crower 36mm Exhaust Valve Single Valve | 2002 - 2014 Subaru WRX (BC3601-S-1)
Vendor:Brian CrowerRegular price $21.45 USDRegular priceUnit price / per$24.63 USDSale price $21.45 USDSale -
Brian Crower 32mm Exhaust Valve | 2002 - 2009 Subaru WRX (BC3601-S)
Vendor:Brian CrowerRegular price $197.00 USDRegular priceUnit price / per$197.00 USDSale price $197.00 USD -
Brian Crower +1mm Over STD Tip 37mm Intake Valve | 2002 - 2009 Subaru WRX (BC3604-S)
Vendor:Brian CrowerRegular price $197.00 USDRegular priceUnit price / per$197.00 USDSale price $197.00 USD -
Brian Crower +1mm Over STD Tip 33mm Exhaust Valve | 2002 - 2009 Subaru WRX (BC3605-S)
Vendor:Brian CrowerRegular price $197.00 USDRegular priceUnit price / per$197.00 USDSale price $197.00 USD -
Perrin Coolant Hose Adapter | 2002-2021 Subaru WRX / STI (ASM-GAU-107)
Vendor:Perrin PerformanceRegular price $20.63 USDRegular priceUnit price / per$33.00 USDSale price $20.63 USDSale -
Perrin Perf Nylon Coupler 2.4in Turbo Inlet | Subaru WRX/WRX STI (03-21) (X-PSP-INT-404)
Vendor:Perrin PerformanceRegular price $24.75 USDRegular priceUnit price / per$33.00 USDSale price $24.75 USDSale -
Perrin Air/Oil Separator | 02-14 Subaru WRX / 04-19 STI with FMIC (PSP-ENG-607)
Vendor:Perrin PerformanceRegular price $429.00 USDRegular priceUnit price / per$572.00 USDSale price $429.00 USDSale -
Torque Solution PNP Aluminum Bung Speed Density Kit | Subaru GD+GR (02-12) (TS-WH-497PA)
Vendor:Torque SolutionRegular price $79.99 USDRegular priceUnit price / per$99.99 USDSale price $79.99 USDSale -
Torque Solution MAF Flange For 3in Piping | 2002-2007 Subaru WRX/STI (TS-MAF-DEN1S)
Vendor:Torque SolutionRegular price $35.54 USDRegular priceUnit price / per$44.43 USDSale price $35.54 USDSale -
Torque Solution PNP Speed Density Adapter Harness | Subaru Impreza GD/GR (03-14) (TS-WH-497)
Vendor:Torque SolutionRegular price $63.99 USDRegular priceUnit price / per$79.99 USDSale price $63.99 USDSale -
Torque Solution PNP SS Bung Speed Density Kit | Subaru Impreza GD/GR (03-14) (TS-WH-497PS)
Vendor:Torque SolutionRegular price $80.88 USDRegular priceUnit price / per$101.10 USDSale price $80.88 USDSale -

Perrin Motor Mount Kit | 2002-2021 Subaru WRX / STI / 2005-2009 Subaru Legacy GT (PSP-DRV-055)
Vendor:Perrin PerformanceRegular price $230.63 USDRegular priceUnit price / per$369.00 USDSale price $230.63 USDSale -

Perrin Lightweight Crank Pulley Black | 2022+ Subaru BRZ/GR86 & WRX 2.4L Turbo (PSP-ENG-106BK)
Vendor:Perrin PerformanceRegular price $135.00 USDRegular priceUnit price / per$216.00 USDSale price $135.00 USDSale -

Perrin Lightweight Crank Pulley Blue | 2022+ Subaru BRZ/GR86 & WRX 2.0L Turbo (PSP-ENG-106BL)
Vendor:Perrin PerformanceRegular price $135.00 USDRegular priceUnit price / per$216.00 USDSale price $135.00 USDSale -

Perrin Lightweight Crank Pulley Red | 2022+ Subaru BRZ/GR86 & WRX 2.0L Turbo (PSP-ENG-106RD)
Vendor:Perrin PerformanceRegular price $135.00 USDRegular priceUnit price / per$216.00 USDSale price $135.00 USDSale -
Perrin Alternator Pulley - Black | 2004-2006 Subaru WRX STI (PSP-ENG-118BK)
Vendor:Perrin PerformanceRegular price $38.13 USDRegular priceUnit price / per$61.00 USDSale price $38.13 USDSale
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.









