Originally Posted by Chriskm3
Please note that the connecting ends on a evolution akra xpipe to the rear section are different then of standard flange with a clamp. Meaning that connecting this xpipe to any other rear section will not fit. Now, I heard people say that an adapter is included in the original shipment. I can not confirm this but that's what I have been told.
There is an adaptor to make the slip ons fit a stock like X pipe, but not the other way around. The Akrapovic X pipe will ONLY fit an Akrapovic slip on. (IND did a few where they cold swagged on an adaptor, but it was very expensive, and you aren't going to find a shop that will be able to weld or bond Titanium very easily)