If so, what mufflers did you use? I just bought Dynomax Ultra-Flo welded mufflers from Summit Racing (part # 17232). Dropped ship from Dynomax (where they are in stock) to my door later this week it's $190 for the pair. These are 3" in/out oval mufflers. For reference sake the stock ones are 13.5" x 11" x 5.5" oval mufflers, 2.5" side in/out (same side). Its that same-side side in/out thing that extrememly limits your choices. I WANT Borlas but they won't sell me just the mufflers that come in their catback. The Dynomax mufflers measure 14"long and will have to be necked down to 2.5" to fit the factory pipes. Should fit no problem.
Anyone else notice the EXTREME pinch on the entry to the factory mufflers necking down the factory 2.5" piping to probably less than 2.25"! I know someone else mentioned it (Jim V?) but take a look at it if you still are stock.. No wonder we pick up so much power from a catback replacement! The other side benefit of keeping my factory catback is that IF the tailpipe baffles are actually functional it will help keep it somewhat quiet which I'd like to do..
Anyone else notice the EXTREME pinch on the entry to the factory mufflers necking down the factory 2.5" piping to probably less than 2.25"! I know someone else mentioned it (Jim V?) but take a look at it if you still are stock.. No wonder we pick up so much power from a catback replacement! The other side benefit of keeping my factory catback is that IF the tailpipe baffles are actually functional it will help keep it somewhat quiet which I'd like to do..