Dealer doesnt seem to know what our inlet size is for a slip on pipe (im removing the factory slip ons, but keeping the heatshields and pipes and im going to y-pipe a two into one for this exhaust) I'm out of town right now and wont be back until late tomorrow... anyone know what the inlet size is so i can finally order this damn thing? I've heard two different answers so far 2.5 and 1.5 in so.... ????