I've never been to them but, I'm going to get kicked of the club for this, but on the local mustang site I'm part of here I hear they are pretty good. The got a dyno in the shop, flowbench blah blah blah that a good shop should have. For a comp. engine building shop I think they are pretty good, not alot of news from them for my stuff but I don't hear anything bad. Their number is 214-503-8044. Hope that helps....good luck!