Well i have a older flowmaster exhaust for sale to pay for my new one coming in.

Not sure of the exact model but its a single inlet/outlet at 2 1/2 diamiter pipe. it is a catback exhaust and my dad payed 375 7 years ago for it. It has about 70k miles on it and im not sure of what price is good for it.

But just for clear its a catback exhaust flowmaster single outlet for a 2001 f150 supercrew