Fabspeed Porsche 991 GT3 / 991.2 GT3 Long Tube Race Headers Interior 5KG versus stock Porsche muffler

5KG versus stock Porsche muffler and adds another 8HP with much superlative sports car sound and growl

You must click the below link to download & print the instructions and ECU tuning form

During independent testing of Fabspeed's Sport Catalytic Converters using a Racelogic VBOX unit

Direct replacement simple bolt-on replacement catalytic converters that replace the 4 restrictive factory OEM 600 cell catalytic converters

Includes Fabspeed's Deluxe Quad-Style Tips in Polished Chrome

Fabspeed Porsche 991 GT3 / 991.2 GT3 Long Tube Race Headers Interior 5KG versus stock Porsche mufflerPURCHASE DISCLAIMER: Fabspeed Motorsport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Fabspeed Motorsport will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86. 1854. 12(a)(3), Clean Air Act 40 CFR 1068. 101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine