GReddy Performance Products is the U.S. arm of Trust Co., Ltd.—a Japanese tuning specialist founded in 1977 in Chiba, Japan. The name “GReddy” (from “Great Eddy”) reflects their roots in turbocharged performance, and since 1994 they’ve combined Japanese engineering with California–tuned R&D to serve enthusiasts worldwide.

Their core offerings include:

Turbocharger Systems: Bolt-on kits engineered for precise fit and optimal boost control.

Exhaust & Intake: Cat-back exhausts with straight-through mufflers for free-flowing sound, plus mandrel-bent intakes and charge-pipe kits for sharper throttle response.

Cooling & Intercooling: High-efficiency intercoolers, radiators, oil-cooler kits, and hoses built to withstand track heat.

Electronics & Boost Control: Profec external boost controllers, E-Manage engine-management modules, wideband controllers, and digital gauges for tuning flexibility.

Every GReddy component is CAD-designed, dyno-tested, and manufactured to JWL/VIA or TUV standards in Japan, with final calibration and support handled in Irvine, CA. Whether you’re looking for a street-friendly exhaust note, an all-in turbo setup, or precision electronic control, GReddy delivers direct-fit, track-proven upgrades that boost power, torque, and driveability.