how about www.mobworks.com

They have done many show cars and although I have never elected to have them do work on my car (there timeframe was too long), there quotes were competitive with other reasonable quotes I received.

'00 CSVT Koni/B&G (New), SCA intake, 18 inch Falken Circuit Spec (gunmetal), CF hood, Headlights by Dan, Mirko, deleted front license plate/painted chrome ring. Headers/y pipe installed - TruBendz Borla system no Res and optimized TB. Getting there!