Optimized design that replaces the heavy and restrictive factory side mufflers for improved exhaust flow, increased sound and weight savings.
Utilizing premium Helical valves along with the addition of O2 bungs, Fabspeed's Side Muffler Bypass Pipes provide the ultimate track solution for the 991 GT3 / GT3 RS. When accompanied with our new Long Tube Competition Headers, our Side Muffler Bypass Pipes allow the maximum amount of exhaust flow possible from the 991 GT3 / GT3 RS engine.
- Fits all Porsche 991 GT3 / GT3 RS vehicles (2014-2016)
- Highest quality Helical valves
- Includes O2 bungs for factory like functionality when paired with Fabspeed Long Tube Competition Headers
- Saves 34 lbs from the rear of the vehicle
- Replicates aggressive CUP car sound for the street
- 14-16ga T304 Stainless Steel construction
- Simple bolt-on installation
- All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty