I am undergoing a similar task with the 5.4 Pantera. I have a stock sized exhaust on there now but the pipes are a pathetic 1 7/8" so I bout some stainless angled tubes and stainless collectors from JC Whitney and a pair of stainless straight through mufflers from ebay. The angles are all there it just all has to be welded together and the mounting tabs put on and I will have a fre-breathin 2 1/2" all stainless exhaust. I can't wait!
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