The GT3's factory exhaust system caters to tightening emission and sound regulations, with the side effect of deadening the auditory experience. Even with valves open, the factory valve programming tames the excitable nature of the GT3 until 5000 RPM where the flat-six finally sings. Our SOUL Performance Exhaust System removes the secondary valved flow path entirely to deliver the most sensational experience throughout the entire rev range.
This non-valved system replaces the restrictive factory muffler directing flow from the factory headers through our uniquely-designed cast cones, through 3" tubing and into our bespoke x-pipe design before exiting through your choice of 4" tips.
With factory headers and the Performance Exhaust System, emissions requirements will be unaffected and cabin presence will remain reasonable. Early development revealed the presence of resonance/drone between 3400-4000 RPM, prompting the addition of tailored Helmholtz resonators to help smooth out these undesirable frequencies while maximizing the driving experience. The inclusion of our Valve Delete Modules will also ensure that the factory valve exhaust can be removed without prompting a Check Engine Light.
The results are a throatier, robust low-end sound that builds to a reasonably aggressive flat-six wail that these cars are known for, similar in volume to previous 997/991-generation Center Muffler Bypass Pipes. This is a sound experience that will no longer be restricted by factory valved programming, enticing the full complement of motorsport sound from the GT3's 4.0-liter on demand and throughout the rev range.