Fabspeed Porsche 911 Turbo 930 Muffler Bypass Zork Tube (1976-1989) Exhausts your GT4 stays emissions-compliant in

your GT4 stays emissions-compliant in most regions and will not throw a Check Engine Light

All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty

955 Turbo / Turbo S Fabspeed ECU Tuning Upgrade

Includes tips in your choice of finish

Fabspeed Porsche 911 Turbo 930 Muffler Bypass Zork Tube (1976-1989) Exhausts your GT4 stays emissions-compliant inHuge reduction in turbo lag for maximum possible power and sports car sound; based off of the Porsche factory 934 IMSA racecar. FEATURES: Fits all Porsche 911 Turbo 930 vehicles worldwide (1976 1989) Bolts directly to the Turbo charger and goes under the rear bumper right out the back. Factory Porsche Motorsport design from the 1970s. ZORK Tube 934 style. Increases horsepower and torque by 46 whp and 65 ft lbs Extremely light muffler solution for the