anyone need a good tuning shop in s cali

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GRC is located in Mission Viejo. They prefer to use Diablo's but can also do custom chips. Anyone reading this that owns a Saleen, do not use them. My car was detonating and pinging horribly after they did the tune on my car, and had to have it redone at Powertrain Dynamics in Huntington Beach. Car is running great now.

GRC does a lot of standard Mustang's though so you may have a better experience.
 
The shop is S.t. motorsports it is in san bernardino the phone number is (909)388-2536 ask for adam. Tell him you got the number from eddie fobian on this web site. Bring your cars down and check it out.
 
ExtremeSaleen said:
GRC is located in Mission Viejo. They prefer to use Diablo's but can also do custom chips. Anyone reading this that owns a Saleen, do not use them. My car was detonating and pinging horribly after they did the tune on my car, and had to have it redone at Powertrain Dynamics in Huntington Beach. Car is running great now.

GRC does a lot of standard Mustang's though so you may have a better experience.


so why did you leave grc if your stang wasn't running right?
 
L8 MUSL said:
And, what is a "standard Mustang"? Like a Saleen is some sort of super Mustang or something ?:rolleyes:


I know this guy. I'm sure he did not mean anything by "standard mustang". He was still bent at the time of this post by having something done twice to get it right.
What he should have said was they do a great job tuning mustangs but his S281E car like most other Saleen Mustangs are a pain in the ass to get right. Powertrain fixes a lot of Saleen tune issues since no one at Saleen has ever heard of air/fuel or detonation before. :rolleyes: