Just so everyone knows.. The factory down pipe can be removed in once piece. It took me two hours of fighting but it came out. I had to jack the trans up and pull it over to the drivers side. remove the trans dipstick and started wiring harness. I still don’t know if it was worth the trouble. I really do not see it going back in since I had to persuade it with a rubber hammer! The air intake, 5" exahust and tunner were a walk in the park to install!