factory or aftermarket is fine, I am having trouble finding a catback for my particular vehicle that will not require me to purchase a header. it is a D16Y5 engine, and has the cat at the front instead of underneath. my midsection is shot, but will last for awhile longer if I can just get an axle back muffler for the time being until I can find a catback that will work. can anyone help me out? need bolt on