The guys @ Extreme (John and George) are brand new. I've had my car up there a few times before and had no problems what-so-ever. They are very well respected by the Evo community and have built some awesome cars. I'll be using them again next year for some engine work.
Alternatively, Dunc @ Hypertech is also very good. I've used him before and my bro uses him for mods/servicing etc on his Scoob.