I am trying to find a end to the police lights behind me. I was wondering if anybody tried making an exhaust out of 3'' pipeing with 2 race mufflers inline, so the noise leval would be down and the flow would stay the same. I have right now a Helix o2,downpipe,cat delete, espelier catback and a pro 1 manifold. the noise leval has definitly increased alot. I was thinking of using 1 borla xr-1 race muffler behind the cat delete and 1 xr-1 where the muffler is now. Will this totally restrict my flow or will it work?

 

I am sure there are people out there that have the same problem?