Thats just plain BS. A car is a car is a car. There is no liability inherent to the exhaust shop whether it is a Shelby GT or a Cavalier. In todays competetive market, it does pay to shop around and barter for their services. Hundreds of these shops go out of business every year because of shoddy business practices. I had my exhaust done at a race shop, and his price was 2-300 lower than any of the so called chains. I got quotes from everyplace I went to, carried them with me and used them when I was hunting for a quote. Two of the shops said that they wouldnt allow me to purchase the mufflers and cats on my own, and I understand that somewhat, but it just seems strange to be turning any business away these days.
Anyway, I hope you are happy with the new system. Have fun.
Matt
coolhand