For those of you who have followed the Speed Channel these guys were on Street Tuner Challenge, where they take 3 shops, let them pick a car and after a certain time customizing them, judge them again on various criteria. These guys picked a Mustang.
I dropped by Syndicate once to see if they would install my diffuser. They wanted to charge me over $300 because they'd never seen one before, and figured that there would be a lot of custom work to make the brackets. Using my local driftboy garage (read this as "able to do great custom work for really cheap because they sell to 240SX owners who want performance above looks above all") it cost me about $50.
I also asked about fixing a dent and they wanted $1200. After seeing some of the work they've done on the Caddy's and other various muscle cars parked around their buildings I decided they weren't the place for me. However, they have several buildings, one just for suspension, one with a nice paint booth, etc. so they are probably very well known in some other community, perhaps muscle car or off-road? Frankly, I just wouldn't take my Supra there.