OK, replacing the stock exhaust with a 4" exhaust. In doing so, I'll give the dogs the ATTACK command and allow them to take care of the CAT (If only they could get the Wife's cats while they're at it). My question is leave stock muffler, change the Muffler (like the one that comes with the JRE) or let the dogs get the Muffler Too?
Darren
Darren