Collection: Engine Upgrades For Subaru Impreza WRX STI GR Hatch
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DeatschWerks 02+ Subaru WRX / 07+ STI/LGT Top Feed Fuel Rail Upgrade Kit w/ 1500cc Injectors
Vendor:DeatschWerksRegular price $949.00 USDRegular priceUnit price / per$949.00 USDSale price $949.00 USD -
DeatschWerks 08+ Subaru WRX/STI X2 Series Pump Module -8AN Feed w/ -6AN Return PTFE Plumbing Kit
Vendor:DeatschWerksRegular price $721.65 USDRegular priceUnit price / per$849.00 USDSale price $721.65 USDSale -
COBB NexGen Stage 2 to Stage 2+ Flex Fuel Power Package | Subaru WRX STI (08-21) (NEXGENFF001)
Vendor:COBBRegular price $980.00 USDRegular priceUnit price / per$980.00 USDSale price $980.00 USD -
COBB Stage 1+ to NexGen Stage 2+ Flex Fuel Power Package Upgrade | Subaru WRX STI (08-21) (SUB004NG2FF-S1P-UP)
Vendor:COBBRegular price $3,230.00 USDRegular priceUnit price / per$3,230.00 USDSale price $3,230.00 USD -
COBB High Flow Fuel Pump | Subaru WRX (08-14) / STI (08-21) / Legacy GT (05-09) (315450)
Vendor:COBBRegular price $190.00 USDRegular priceUnit price / per$190.00 USDSale price $190.00 USD -
COBB NexGen Ethanol Sensor Kit Module + Harness | Subaru WRX (11-14)/STI (08-21) (315670)
Vendor:COBBRegular price $540.00 USDRegular priceUnit price / per$540.00 USDSale price $540.00 USD -
COBB NexGen Flex Fuel Ethanol Sensor Kit | Subaru STI (08-21) (325650)
Vendor:COBBRegular price $790.00 USDRegular priceUnit price / per$790.00 USDSale price $790.00 USD -
COBB One Step Colder Spark Plug Set | Subaru WRX/STI/Legacy GT/Outback XT/Forester XT (D44700)
Vendor:COBBRegular price $65.00 USDRegular priceUnit price / per$65.00 USDSale price $65.00 USD -
COBB 70mm Cast Aluminum Turbo Inlet | Subaru WRX/Forester XT (15-21/14-18) (745450)
Vendor:COBBRegular price $265.00 USDRegular priceUnit price / per$265.00 USDSale price $265.00 USD -
COBB Carbon Fiber Fuse Box Cover Overlay | Subaru WRX/STI (08-21) (844660)
Vendor:COBBRegular price $205.00 USDRegular priceUnit price / per$205.00 USDSale price $205.00 USD -
COBB 30"x10.35"x3.5" Black FMIC Core | Subaru WRX/STI (11-14) (724502-BK)
Vendor:COBBRegular price $1,125.00 USDRegular priceUnit price / per$1,125.00 USDSale price $1,125.00 USD -
COBB Aluminum Radiator & Alternator Cover Package | Subaru WRX/STI (08-14) (SUB00005)
Vendor:COBBRegular price $180.00 USDRegular priceUnit price / per$180.00 USDSale price $180.00 USD -
COBB 30"x10.35"x3.5" Black FMIC Kit | Subaru WRX (11-14) (724500-BK)
Vendor:COBBRegular price $1,750.00 USDRegular priceUnit price / per$1,750.00 USDSale price $1,750.00 USD -
COBB 30"x10.35"x3.5" FMIC Silver w/IAT Bung 2.5" Piping | Subaru WRX (11-14) (724500-SL)
Vendor:COBBRegular price $1,750.00 USDRegular priceUnit price / per$1,750.00 USDSale price $1,750.00 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 -
COBB Front Mount Intercooler BPV Adapter | Subaru WRX (02-07) / STI (04-21) (812500)
Vendor:COBBRegular price $85.00 USDRegular priceUnit price / per$85.00 USDSale price $85.00 USD -
COBB Fuel Pressure Sensor Kit | Subaru STI (08-21) (315650)
Vendor:COBBRegular price $275.00 USDRegular priceUnit price / per$275.00 USDSale price $275.00 USD -
COBB Fuel Pressure Regulator Kit OEM | Subaru WRX STI (08-21) (315200)
Vendor:COBBRegular price $410.00 USDRegular priceUnit price / per$410.00 USDSale price $410.00 USD -
COBB TD05H-20G Turbocharger | Subaru WRX STI (08-21) (E1120G)
Vendor:COBBRegular price $1,470.00 USDRegular priceUnit price / per$1,470.00 USDSale price $1,470.00 USD -
COBB Silicone Turbo Inlet V2 Black | Subaru WRX/Legacy GT/Outback XT (08-14/05-09) (724450)
Vendor:COBBRegular price $290.00 USDRegular priceUnit price / per$290.00 USDSale price $290.00 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.

















