Replaces the heavy and restrictive factory side mufflers for improved exhaust flow increased sound and weight savings. 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.
O2 BUNGS
We relocated the O2 bungs from the collector of the headers to the Side Muffler Bypass Pipes in order to maintain factory-like functionality with our Long Tube Competition Headers - allowing them to read all cylinders while maximizing the performance of the collector. This design will replace our existing SMBP’s allowing you to upgrade to our Long Tube Race Header design at any time in the future.
Valve Configuration: Non-Valved
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
