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About Greddy
As new cars become more complex with integrated computer controls, GReddy continues to evolve to meet these challenges by designing streetable products and obtaining numerous CARB Exemption Orders in a variety of products, including: Turbo Kits, Intercoolers, Electronics, Headers and Intakes. The new generation of GReddy electronics is designed to add performance to computer-controlled vehicles without affecting emission levels. This year the new SP2 and EVO2 all stainless steel exhaust systems not only provide high levels of performance but meet emissions and new noise standards.

GReddy Exhaust Systems GReddy Exhaust Systems
GReddy Exhaust systems have always been the base for aftermarket performance. From the beginner starting off to the high horsepower racer, who need to comply to track sound requirements, a well engineered exhaust system will enhance performance, sound, appearances, and economy. Upgrading restrictive factory exhaust with a tuned GReddy Exhaust System will increase horsepower & torque, add a deep sporty exhaust note, give style & flare to the look of your car, all while increasing fuel efficiency.
GReddy Wastegates GReddy Wastegates
One of the most important components in a well designed turbo charged engine, is a properly sized wastegate. Too small of a wastegate can cause boost creep, while too large of a wastegate will increase boost lag and decrease performance. GReddy external wastegates are made from the highest quality materials to assure both stability and durability in a turbo charger's boost control. Each wastegate is adjustable as well as rebuildable. Available in 4 sizes and various spring rates. From 0.8kg/cm2 (11psi) to 1.5kg/cm2 (21psi) and up.
GReddy Blow Off Valve GReddy Blow Off Valve
Turbo lag is the enemy of any turbo charged vehicle. Our Blow Off Valves are easily adjustable to prevent both premature boost leakage and compressor surge. Each blow off valve is made of durable cast and billet aluminum frame, and the valve to diapharm ratio provide preformance that cheep piston type blow off valves can not offer. The spring stiffness adjustment screw and the two different sizes give the GReddy user the option to match vehicles with mild upgrades to heavily tuned engines. Also available in easy to install kit form for most Japanese turbo charged vehicles.
GReddy Turbo Kits GReddy Turbo Kits
It takes a tremendous amount of money and time to successfully increase the power of a naturally aspirated engine. With GReddy bolt-on turbo charger kits, you can obtain instant horsepower gains with less time and money, while still having room for upgrading. Vehicles already equipped with turbo chargers have engines with a large potential for power, which can not be fully obtained by using the factory turbo chargers. By replacing the stock turbo charger with a GReddy turbo upgrade kit, you can experience a powerful performance difference.
GReddy Engine Parts GReddy Engine Parts
Greddy Metal Head Gaskets, Greddy Cam Gears, Greddy Timing Belts, Greddy Camshafts, Greddy Spark Plugs, and Greddy Pulley Kits.
Greddy Intake Systems Greddy Intake Systems
GReddy Air Intake Systems are designed to be the perfect match to free-flowing GReddy Exhaust systems, like the SP Elite, RS-Racing Sport and Evo3. Like our exhausts we carefully study each specific application to develop the ideal system; complete, easy to install, with quality construction and great fitment.