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 -
Perrin Top Mount Intercooler | 2008-2021 Subaru WRX STI (PSP-ITR-302SL/BK)
Vendor:Perrin PerformanceRegular price $697.50 USDRegular priceUnit price / per$930.00 USDSale price $697.50 USDSale -
Compressive Tuning Louvre Engine Cover 2008-2021 STI
Vendor:Compressive TuningRegular price $180.91 USDRegular priceUnit price / per$199.00 USDSale price $180.91 USDSale -
Perrin Alternator Pulley - Red | 2007-2021 Subaru WRX STI (PSP-ENG-119RD)
Vendor:Perrin PerformanceRegular price $45.75 USDRegular priceUnit price / per$61.00 USDSale price $45.75 USDSale -
HKS SSQV Recirculation Kit | Subaru Impreza WRX STi (08-21) (71002-AF002)
Vendor:HKSRegular price $42.90 USDRegular priceUnit price / per$42.90 USDSale price $42.90 USD -
HKS SSQV4 Black BOV | Subaru WRX/WRX STI/Forester 02-08 (71008-KF006B)
Vendor:HKSRegular price $349.80 USDRegular priceUnit price / per$349.80 USDSale price $349.80 USD -
HKS Turbo Timer Harness Type FT-6 | Subaru WRX/STI (08-14) (41003-AF006)
Vendor:HKSRegular price $30.00 USDRegular priceUnit price / per$30.00 USDSale price $30.00 USD -
Cusco Billet Aluminum Engine Pitch Stop Mount | Subaru WRX/STI/LGT/FXT (02-24) (6A1 911 PS)
Vendor:CuscoRegular price $153.00 USDRegular priceUnit price / per$170.00 USDSale price $153.00 USDSale -
HKS SSQV4 Blow Off Valve w/ Recirculation | Subaru Impreza WRX STI (08-14)/VAB (15+) (71008-KF013VB)
Vendor:HKSRegular price $382.80 USDRegular priceUnit price / per$382.80 USDSale price $382.80 USD -
Brian Crower 37mm Intake Valve - Single | 2002 - 2014 Subaru WRX (BC3604-1)
Vendor:Brian CrowerRegular price $21.45 USDRegular priceUnit price / per$24.63 USDSale price $21.45 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 -
COBB 30"x10.35"x3.5" Silver FMIC Kit | Subaru STI (08-14) (715500-BK)
Vendor:COBBRegular price $2,440.00 USDRegular priceUnit price / per$2,440.00 USDSale price $2,440.00 USD -
Torque Solution Billet Thermostat Housing | Subaru WRX/WRX STI/Legacy GT (02-21) (TS-SU-755)
Vendor:Torque SolutionRegular price $61.29 USDRegular priceUnit price / per$74.43 USDSale price $61.29 USDSale -
Perrin Alternator Pulley - Blue | 2007-2021 Subaru WRX STI (PSP-ENG-119BL)
Vendor:Perrin PerformanceRegular price $45.75 USDRegular priceUnit price / per$61.00 USDSale price $45.75 USDSale -
Torque Solution PNP Speed Density Adapter Harness | Subaru Impreza GD/GR (03-14) (TS-WH-497)
Vendor:Torque SolutionRegular price $65.87 USDRegular priceUnit price / per$79.99 USDSale price $65.87 USDSale -
Perrin Alternator Pulley - Black | 2007-2021 Subaru WRX STI (PSP-ENG-119BK)
Vendor:Perrin PerformanceRegular price $45.75 USDRegular priceUnit price / per$61.00 USDSale price $45.75 USDSale -
Torque Solution PNP SS Bung Speed Density Kit | Subaru Impreza GD/GR (03-14) (TS-WH-497PS)
Vendor:Torque SolutionRegular price $83.26 USDRegular priceUnit price / per$101.10 USDSale price $83.26 USDSale -
Torque Solution PNP Map Sensor Harness Adapter | Subaru GD+GR+VA (02-13) (TS-WH-496)
Vendor:Torque SolutionRegular price $32.02 USDRegular priceUnit price / per$38.88 USDSale price $32.02 USDSale -
Torque Solution PNP Speed Density Adapter Harness | Subaru WRX/STI (08-21) (TS-WH-499)
Vendor:Torque SolutionRegular price $65.87 USDRegular priceUnit price / per$79.99 USDSale price $65.87 USDSale
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.







