fordtk12 Banned Joined Dec 15, 2006 Messages 371 May 6, 2007 #1 What exhaust size and which one are you running on the 3rd gen trucks.
fordtk12 Banned Joined Dec 15, 2006 Messages 371 May 6, 2007 #3 I don't want to open it up to were the fuel mileage starts to go down. On that thought ???
95ram New member Joined Oct 6, 2006 Messages 517 May 7, 2007 #4 04.5 and up already have 4". Just cut the muffler out and you're good to go.
Boz007 OH Snap! Joined May 7, 2006 Messages 33 May 7, 2007 #5 5" turbo back. MBRP. The stock system is a 4" system but the 5" sounds so much better.
'strokeThis_'07 New member Joined Dec 31, 2006 Messages 1,626 May 7, 2007 #6 Factory 4" minus muffler, but goin with 5" turbo back, no cat/muffler
