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Browse & shop Turbochargers for your car or truck.
Turbochargers increase engine airflow by compressing intake air, allowing the engine to produce more power when paired with proper fueling and tuning. Turbo upgrades are commonly selected to support higher horsepower targets and improved performance capability beyond what the factory turbo can deliver.
Aftermarket turbochargers are typically installed alongside supporting modifications such as intercoolers, boost control components, fuel system upgrades, and ECU tuning to ensure reliable operation under increased boost. For a complete look at how turbo upgrades fit into a WRX or STI build, our guide on the best turbo upgrades for Subaru WRX covers the top options by power goal. Our guide on stock turbo vs upgraded turbo on WRX and STI explains when upgrading becomes necessary and what changes with a larger unit.
Turbochargers for Subaru WRX and STI
Turbo selection depends on engine platform, power goals, spool characteristics, and intended vehicle use. Street-focused setups prioritize response and drivability, while larger-frame turbos support higher peak power at the expense of spool time.
We carry turbochargers from Boost Lab and COBB Tuning covering WRX FA20 and STI EJ platforms. Boost Lab's TD06SL2 series is a proven upgrade path for builds targeting 450 to 500+ horsepower with proper supporting modifications. Proper tuning and supporting components are required to maintain safe air-fuel ratios, exhaust gas temperatures, and overall engine reliability.
Supporting Modifications Required for a Turbo Upgrade
A turbocharger upgrade affects every system in the forced induction path. Larger turbos move more air and create more heat, which requires matching upgrades across fueling, cooling, and exhaust to maintain safe and reliable operation.
For a complete list of what a big turbo build requires, our guide on supporting mods for big turbo WRX builds covers every upgrade needed to support serious power safely. Our guide on boost control and forced induction on WRX and STI explains how the full forced induction system works together.
Related Forced Induction and Supporting Upgrades
- Intercooler Kits required to manage increased intake temperatures with a larger turbocharger.
- Boost Controllers improved boost control for consistent and accurate boost targeting with an upgraded turbo.
- Wastegates regulate boost pressure and support stable turbo system operation under load.
- Fuel Delivery Upgrades fuel pump and injector upgrades required to support higher airflow from a larger turbo.
- EFI Tuning professional tuning required after any turbo upgrade to calibrate boost, fueling, and ignition.
- WRX Turbo and Airflow Upgrades Guide plan the complete forced induction upgrade path for your WRX or STI build.
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