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      01-17-2013, 08:49 PM   #51

Drives: 2011 E92 M3
Join Date: Dec 2011
Location: Canada

iTrader: (1)

Originally Posted by guentherkapp View Post
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.
2011 Alpine White/Fox Red 6MT E92 M3 | Active Stage 2 w/Meth | KW Clubsport | OSS | Challenge Front Lip | Vorsteiner Type 2 Rear Diffuser and Bootlid | Brembo | Recaro | Akrapovic Slip-On | Challenge Race+ X-Pipe | Vossen CV3 | OEM 359M | TE37SL