Collection: Engine Upgrades For Subaru Impreza WRX STI GR Hatch
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COBB AccessPORT V3 ECU Tuner | Subaru WRX/STI (15-21) / Forester XT CVT (14-18) (AP3-SUB-004)
Vendor:COBBRegular price $770.00 USDRegular priceUnit price / per$770.00 USDSale price $770.00 USD -
Perrin 2.4" Turbo Inlet Hose Install Kit | 02-07 WRX / 04-21 STI (S-PSP-INT-401)
Vendor:Perrin PerformanceRegular price $33.75 USDRegular priceUnit price / per$45.00 USDSale price $33.75 USDSale -
Torque Solution V2 SS Oil Pickup w/ Windage Baffle | Subaru WRX/STI (04-21) (TS-SU-599-PBS)
Vendor:Torque SolutionRegular price $186.65 USDRegular priceUnit price / per$233.32 USDSale price $186.65 USDSale -
Perrin Black Turbo Inlet Hose Install Kit Only | 2008-2014 Subaru WRX (S-PSP-INT-421)
Vendor:Perrin PerformanceRegular price $35.25 USDRegular priceUnit price / per$47.00 USDSale price $35.25 USDSale -
Perrin Oil Temp/Press Adapter | Subaru 07-25 (ASM-GAU-102)
Vendor:Perrin PerformanceRegular price $51.25 USDRegular priceUnit price / per$82.00 USDSale price $51.25 USDSale -

Torque Solution Turbo Heat Shield | 2002-2014 Subaru WRX and 2004-2021 Subaru WRX STI (TS-SU-697-S)
Vendor:Torque SolutionRegular price From $66.65 USDRegular priceUnit price / per$83.32 USDSale price From $66.65 USDSale -
Brian Crower 36mm Intake Valve | 2002 - 2009 Subaru WRX (BC3600-S)
Vendor:Brian CrowerRegular price $171.51 USDRegular priceUnit price / per$197.00 USDSale price $171.51 USDSale -
Perrin Engine Mount Kit | 2022+ Subaru WRX / Forester (PSP-DRV-056)
Vendor:Perrin PerformanceRegular price $230.63 USDRegular priceUnit price / per$369.00 USDSale price $230.63 USDSale -
Perrin Alternator Pulley - Blue | 2022+ Subaru WRX and 2014-2018 Subaru Forester XT (PSP-ENG-121BL)
Vendor:Perrin PerformanceRegular price $38.13 USDRegular priceUnit price / per$61.00 USDSale price $38.13 USDSale -
COBB Redline Carbon Fiber Alternator Cover | Subaru WRX (08-14) STI (08-21) (422600)
Vendor:COBBRegular price $180.00 USDRegular priceUnit price / per$180.00 USDSale price $180.00 USD -
Perrin Alternator Pulley - Blue | 2007-2021 Subaru WRX STI (PSP-ENG-119BL)
Vendor:Perrin PerformanceRegular price $38.13 USDRegular priceUnit price / per$61.00 USDSale price $38.13 USDSale -
Torque Solution Billet Thermostat Housing | Subaru WRX/WRX STI/Legacy GT (02-21) (TS-SU-755)
Vendor:Torque SolutionRegular price $59.54 USDRegular priceUnit price / per$74.43 USDSale price $59.54 USDSale -
COBB FMIC BPV Adapter | Subaru WRX (08-14) / Legacy GT (05-09) (824500)
Vendor:COBBRegular price $80.00 USDRegular priceUnit price / per$80.00 USDSale price $80.00 USD -
Perrin Diverter Valve - Red | 2022+ Subaru WRX / Ascent / Legacy / Outback (PSP-TAC-616RD)
Vendor:Perrin PerformanceRegular price $123.13 USDRegular priceUnit price / per$197.00 USDSale price $123.13 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 -
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
Engine Upgrades for Subaru Impreza WRX STI GR Hatch to Boost Performance and Reliability
Unlock the full potential of your Subaru Impreza WRX STI GR Hatch with precision-engineered engine upgrades designed to enhance power, throttle response, and driving dynamics. This collection features components tailored specifically for your model, ensuring fitment confidence and meaningful performance improvements.
What are the key benefits of upgrading your WRX STI GR Hatch’s engine components?
Upgrading engine parts can significantly improve your vehicle’s responsiveness, power delivery, and durability. Performance intakes and exhausts optimize airflow for better combustion, while turbochargers and related hardware increase boost efficiency. Additionally, cooling system enhancements help maintain optimal temperatures under demanding conditions, reducing the risk of heat-related issues.
- Improved horsepower and torque output
- Enhanced throttle response and engine sound
- Increased reliability during spirited driving or track use
- Better thermal management for sustained performance
How to choose the right engine upgrades for your Subaru Impreza WRX STI GR Hatch?
Selecting the right parts depends on your performance goals and daily driving needs. Consider whether you want to focus on power gains, engine reliability, or sound refinement. Engine management and tuning accessories are essential for maximizing gains and ensuring safe operation. Also, drivetrain supports and mounts help maintain stability and reduce unwanted vibrations when increasing power.
Explore and shop quality engine upgrades for your WRX STI GR Hatch at WheelFlip
Our curated collection offers a wide range of aftermarket components engineered for perfect fitment and performance enhancement. From performance intakes and exhausts to turbochargers and cooling upgrades, each product is selected to help you build a reliable and powerful Subaru WRX STI GR Hatch. Browse WheelFlip’s engine upgrades to find parts that match your build goals with confidence.








