I dunno about the engine sound but I can feel the RPM for sure. I'll let you know in two months when the other one is in and the turbo is installed
Speaking of which, I've been desperately trying to find a flange for the that will mate up to the stock P5 midpipe. The same one as the one at the end of the OBX header. Does anyone know what the exact diameter is of that flange as well? I'm pretty sure that it's 2" but I may be wrong. I need the flange since we'll be making a custom downpipe since the S-pipe on my kit is not like the stock MSP one. I already got the 2" flange that will mate up perfectly to the S-pipe (with the three bolts) and I also got the madrel bent steel tubing but I cannot find that one other flange. THe two hole one.