Subaru’s Impreza WRX and STI arrived stateside ready for boost. The WRX with its turbocharged 2.0-liter Boxer engine and the higher output WRX STI variant and its 2.5-liter Boxer engine take well to modifications. Full-Race offers a broad range of solutions for your Subaru. Keep it simple with a bolt-on turbo upgrades from Garrett, BorgWarner, Precision Turbo and MHI. Looking for more power? Check out our complete turbo kit upgrades that include manifolds, intercoolers, wastegates and ancillary components.