In the end you will have gottin a better job if you bite the bullet and have and ex shop do it for you.Heck i have a tubing bender and i dont do ex work.The guys build that stuff to cheap.Last daul 235 i did was 230 bucks out the door with new mufflers.So.....i bet a single would be pretty cheap unless you want stainless(that i do myself). Try for at least aluminized pipe and a good guaranttee muffler cause are stuff sits alot and rots mufflers from the inside out.