The big difference from our replacement panther tailpipes is this pipe is fully 2 1/2" and mandrel bent. Ours are 2" with kinks EVERYWHERE. According to the exhaust chart stepping up from 2" to 2.5" makes for a 56% flow capacity increase ! That's not even factoring in the advantages of mandrel bent.

Owner caption August 2007 · Photo 303 of 445