I'm thinking about getting a flowmaster 80 series cat-back kit for my Z28 but the websites that I've found them on want like 350 bucks or more for the system when the muffler itself goes for less than $100. I know that most of the power made from the cat back kit comes from the 3" mandrel bent cat to muffler pipe but I refuse to pay the extra $250 for basically that pipe alone. Can someone help me out by pointing me to a site or local shop that sells this kit or can build me an equivalent for significantly less money? Thanks