I have a 2003 Mustang GT dual exit exhaust and i was wondering how i would install cutouts. What do I need to install them? I know I need the cutouts but do i need a Y-Pipe? Or should i buy two cutouts? THere is already an H pipe on the car.
On duel exhuast most people use 2 cut outs right after the headers best way is to have a exhuast shop weld them in. If you don't already have headers I would do that first it will sound better and give you better performance