I don't want a performance muffler... just an OEM replacement. I found the Walker 21478 for $66 shipped. See link below. It says the inlet and outlets are 2.25 inches. From what I can gather, the stock pipes are 2.5 inches, so in my little feeble mind, that sounds like all I have to do is cut and clamp. Am I right? I have a buddy who can install it. He's my go-to maintenance guy who's cared for the ST for the past eight years doing stuff I can't do (or don't want to do) on my own.