im about to put this in to replace my bolra pro xs muffler but its super small and I don't want it to be crazy loud. current set up was borla catback then I went straight pipe and it was craazzzyyyy loud added the pro xs than z1 hfc and love the sound. the pro xs is a very sound dampening muffler though. if I put this on Exhaust Muffler Magnaflow 11378 | eBay Is it going to be super loud? sounding straight pipe again scared me its only 11inchs!!!! help me before I make another mistake like straight piping!!!

 

That's a resonated X pipe, you would use that to replace your two mid pipes.