Greddy Turbocharger Kit

GReddy Turbocharger Kits: Decades of Forced-Induction Engineering

Few names carry as much weight in the forced-induction world as GReddy. Founded under the Trust Company in Japan in 1977, GReddy has spent decades refining the art of turbocharging — and it shows in every kit they produce. Turbocharger kits are arguably the product category most synonymous with the GReddy name, and for good reason.

Peak horsepower numbers, large external dimensions, and max boost levels don't tell the whole story in turbocharging. Variations in properly sized housings and wheel designs can mean all the difference in creating drivable, usable power. With over 40 years of performance turbocharger experience, GReddy is able to offer the best combination of response and peak power by properly matching the turbocharger size and design to suit any application — from high-power, top-level race cars to their own Bolt-on, Tuner Turbo, and Turbo Upgrade kit lines.

Three Kit Lines, One Philosophy

GReddy turbocharger kits are engineered for vehicle-specific applications, allowing each kit to be tailored for the best match in performance, drivability, and ease of installation. They offer three main categories of forced-induction kits, along with supplemental products to support their "Total Tune-up" philosophy.

• Bolt-on Turbo Kits: Designed to meet the needs of those who want to make their naturally aspirated engine cars faster, these kits add power and torque in an accessible, bolt-on format. For example, the GR86/BRZ bolt-on kit was developed exclusively for the platform — after testing multiple turbochargers to match the FA24 engine, GReddy selected the optimal compressor wheel, cover, and exhaust housing. The result is a turbo that starts working smoothly from low revolutions with strong acceleration felt all the way to around 6,000 rpm.
• Tuner Turbo Kits: Designed around powerful Garrett GTX-R turbochargers, these kits include a larger intercooler and all the necessary hardware for a versatile build. GReddy incorporates the full line of Turbo by Garrett GTX-R turbochargers in their lineup to better match the ideal turbocharger to each specific application.
• Turbo Upgrade Kits (Wastegate Type): These kits feature a turbocharger paired with a separate bypass valve "wastegate" on the exhaust manifold — a high-grade solution for the enthusiast who wants ideal engine tuning with a clear performance target in mind.

Purpose-Built for Iconic Japanese Platforms

GReddy's turbocharger lineup includes new dual ball-bearing GP-series turbochargers as well as the classic, dependable TD, TZ, and T-power turbocharger families. Vehicle-specific kits span legendary platforms including the Toyota Supra JZA80, Nissan S14/S15, and Mazda RX-7 FD3S, among many others — each application engineered with the precision that has made GReddy a trusted name among professional racers and weekend tuners alike.

The name GReddy itself is derived from the words "GREAT" and "Eddy," referring to the strong swirling intake air of a turbocharger — a fitting origin for a brand that has built its identity around forced induction. Whether you're building a street-legal sport compact or a dedicated circuit machine, GReddy's turbocharger kit lineup offers an engineering-first approach to extracting real, usable power.