Not much in Irvine, but there's good stuff in Costa Mesa by South Coast or in Newport.
There's awesome suchi at BlueFin or the trendy Javier where the OC Cougars hang at. You just take that rode that goes behind UCI and turn left at the HUGE church to PCH. Then turn left on PCH to the shopping mall. Javier's is pretty big but Blufin is much smaller, next to the nice Italian place.
There's one of the best Persian place's in LA/OC by South Coast, I think it's Javon, next to Mortons. The best steak place is Mastro's.
Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."