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Montana_108
03-03-2004, 10:49 AM
Got my F350 out of a custom muffler shop today, they added a 7th leave spring to beef up my rear end. Saw a real nice exhaust system, 4 inch pipe, and flowthrough muffler, runs from turbo back, eliminating the 2.5 inch restriction in the stock muffler. My ford dealer could not tell me changing out the stock exhaust system voids the warranty. He reconfirmed that performance chip does, but could not address the exhaust system swapout. Anybody know, as I am leaning forward to do it.

Mike and Lorraine
Fredericksburg Virginia
2003 Montana 3655FL/F350 Diesel, fulltiming, Colorado Springs thru March