I was a referral from Decatur Mercedes-Benz auto repair so,I had these guys investigate why my 95 Tahoe work truck was dogging out so bad and I had a hunch it had to do with the exhaust,the owner thought that maybe my catalytic converter might be clogged or the muffler baffles were broken, especially since I have a quarter million miles on the truck. Anyway I just had him replace the catalytic converter and muffler and Its perfect. The problem ended up being the baffles in the muffler were broken out and causing low flow. Anyway I have no complaints and I don't think these guys racially profile so don't worry about that review.
I also run a automotive type business and it's really nice to run across a company that's competent to do the work and confident at the same time. You guys at Performance rock, thank you, Mike