My exhaust measures 3.5" single before the muffler and each pipe going into the Y measures about 3" at that point.
I was thinking about doing an aftermarket exhaust but it may not be that beneficial.
That really helps. Thanks! You can clearly see that one has a fake dual outlet muffler like the 2500HD's. My late 07 is a single out and the pipe looks bigger.
Anyone with pics before the muffler? Or anyone have pipe sizes on the early models?
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