I think there is some confusion as to the parts required. The adapters that we sell are for an individual mounting the Akrapovic x-pipe to any non-Akrapovic rear section. Akrapovic does not use a ball flange like the original factory system, so it requires a fabricated adapter. This is where our solution comes into play.
As for the slip-on. Installing this to the factory x-pipe simply requires the Akrapovic adapters and clamps. Akrapovic sells these pieces for $30/piece. #6 and #7
