Originally Posted by guentherkapp
Please allow me to state first – I am sorry to ask these questions, but all of my searches did not give me the answers I was looking for.
My questions are
How much louder will the Evolution exhaust be with the GT4 X-pipe? Assuming the OP has the X-pipe with the two 100psi cats and the resonators.
Would the evolution exhaust be too loud with the GT4 X-pipe (no cats and no resonators), meaning noise levels like the Eisenmann Race, RPI, Kreissieg with valves open, etc…?
I have found video clips of the GT4 x-pipe paired with other mufflers, but not with the Akra mufflers.
I am also considering to take the cold start out for the cat less setup.
I used to have an Akra evo and then decided to go catless. I Didn't get the gt4 midpipe because it cost too much. Instead I paired it with a challenge race+ midpipe and the sound got a bit louder but also raspier. It's definitely not as loud as a catless eisenmann race or catless rpi or catless kreissieg or catless gintani race.