Collection: Engine Upgrades For Subaru Impreza G4
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Fel-Pro Crankshaft Seal Kit | Subaru WRX / BRZ / Scion FR-S / Toyota 86 (07-23)
Vendor:Fel-ProRegular price $55.05 USDRegular priceUnit price / perSale price $55.05 USD -
Banks Power Pedal Fits Monster Stand-Alone Throttle Controller 64325
Vendor:Banks PowerRegular price $295.00 USDRegular priceUnit price / per$327.78 USDSale price $295.00 USDSale -
Torque Solution Steering Damper Lockdown | Subaru WRX/Forester/Legacy GT (TS-SU-310)
Vendor:Torque SolutionRegular price $73.77 USDRegular priceUnit price / per$92.21 USDSale price $73.77 USDSale -
Radium 08-21 Subaru Fuel Hanger Plumbing Kit - Microglass
Vendor:Radium EngineeringRegular price $455.95 USDRegular priceUnit price / per$479.95 USDSale price $455.95 USDSale -
Radium Subaru Fuel Hanger For Walbro GSS342 or AEM 50-1200 - Pumps Not Included
Vendor:Radium EngineeringRegular price $493.95 USDRegular priceUnit price / per$519.95 USDSale price $493.95 USDSale -
Radium 08-21 Subaru Fuel Hanger Plumbing Kit - Stainless
Vendor:Radium EngineeringRegular price $474.95 USDRegular priceUnit price / per$499.95 USDSale price $474.95 USDSale -
Radium Subaru Fuel Hanger For Deatschwerks DW400 - Pumps Not Included
Vendor:Radium EngineeringRegular price $512.95 USDRegular priceUnit price / per$539.95 USDSale price $512.95 USDSale -
Radium Subaru Fuel Hanger For Walbro F90000267/274/285 - Pumps Not Included
Vendor:Radium EngineeringRegular price $512.95 USDRegular priceUnit price / per$539.95 USDSale price $512.95 USDSale -
Fel-Pro 15-21 Subaru WRX / 13-20 BRZ / 13-16 Scion FR-S / 17-20 Toyota 86 Engine Oil Drain Plug Gasket | Universal
Vendor:Fel-ProRegular price $3.51 USDRegular priceUnit price / perSale price $3.51 USD -
Fel-Pro Engine Coolant Thermostat Housing Gasket | Subaru BRZ (14-23) / Forester (16-23) / Crosstrek (16-23) (36161)
Vendor:Fel-ProRegular price $2.14 USDRegular priceUnit price / perSale price $2.14 USD -
Fel-Pro Engine Valve Stem Oil Seal Set | Subaru WRX/BRZ/Scion FR-S/86 (SS729331)
Vendor:Fel-ProRegular price $36.66 USDRegular priceUnit price / perSale price $36.66 USD -
Fel-Pro Engine Crankshaft Seal Kit | Subaru WRX (13-20) / BRZ (13-20) / Scion FR-S (13-16) / Toyota 86 (17-20) (BS40748)
Vendor:Fel-ProRegular price $13.66 USDRegular priceUnit price / perSale price $13.66 USD -
Fel-Pro Fuel Pump Gasket | Subaru BRZ / Crosstrek / Forester (12-25) (73441)
Vendor:Fel-ProRegular price $16.15 USDRegular priceUnit price / perSale price $16.15 USD -
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 -
aFe Pro GUARD D2 Oil Filter | Nissan Trucks (99-14) / Honda Cars (01-14) (44-LF016)
Vendor:aFeRegular price $15.61 USDRegular priceUnit price / per$16.00 USDSale price $15.61 USDSale -
aFe Pro GUARD D2 Oil Filter (4 Pack) | Nissan Trucks (99-14) / Honda Cars (01-15) (44-LF016-MB)
Vendor:aFeRegular price $54.00 USDRegular priceUnit price / per$54.00 USDSale price $54.00 USD -
ACT Pilot Bearing | Toyota Tacoma 2002 (PB1004)
Vendor:ACTRegular price $7.00 USDRegular priceUnit price / per$9.00 USDSale price $7.00 USDSale -
Perrin Pulley Cover Red | Subaru Impreza/ Crosstrek/ Legacy/ Outback (PSP-ENG-154RD)
Vendor:Perrin PerformanceRegular price $60.63 USDRegular priceUnit price / per$97.00 USDSale price $60.63 USDSale -
Perrin Pulley Cover Black | Subaru 17-25 Impreza/Crosstrek/Legacy/Outback (PSP-ENG-154BK)
Vendor:Perrin PerformanceRegular price $60.63 USDRegular priceUnit price / per$97.00 USDSale price $60.63 USDSale -

Perrin Pulley Cover Hyper Pink | Subaru 17-25 Impreza/Crosstrek/Legacy/Outback (PSP-ENG-154HP)
Vendor:Perrin PerformanceRegular price $65.63 USDRegular priceUnit price / per$105.00 USDSale price $65.63 USDSale
Engine Upgrades for Subaru Impreza G4: Enhance Power and Reliability
Unlock the true performance potential of your Subaru Impreza G4 with targeted engine upgrades designed specifically for this model. Whether you're looking to increase horsepower, improve throttle response, or boost engine durability, our collection offers premium aftermarket parts tailored to your needs.
What Engine Upgrades Deliver the Best Performance Gains?
Performance improvements start with quality components that work in harmony with your Subaru Impreza G4’s engine. Upgrading intake and exhaust systems can significantly improve airflow, resulting in better combustion efficiency and throttle response. Cooling upgrades help maintain optimal engine temperatures under demanding conditions, while forced induction parts like intercoolers and blow-off valves support higher boost levels and power output.
- High-flow intake systems for improved air delivery
- Performance exhaust components to reduce backpressure
- Enhanced cooling solutions to prevent overheating
- Forced induction accessories for turbocharged models
How to Choose the Right Engine Components for Your Subaru Impreza G4
Selecting the right parts requires understanding your build goals and vehicle usage. Consider whether you prioritize daily drivability, track performance, or a balanced upgrade. Fitment confidence is key—each product in this collection is chosen to ensure compatibility with the Impreza G4’s engine bay and mounting points. Additionally, pairing engine management and tuning accessories with hardware upgrades can optimize performance gains and reliability.
Supporting Modifications and Where to Shop Engine Upgrades
Upgrading your engine often involves supporting modifications such as durable mounts, upgraded hardware, and tuning accessories to maximize reliability and performance. Proper installation and tuning are essential to get the most out of your new parts. Explore our curated selection of engine upgrades for the Subaru Impreza G4 at WheelFlip, where fitment and quality are prioritized to help you build a dependable and powerful ride.















