I live in SA and a friend of mine who races recommends Murillo Motorsports. I am thinking about 04Sleeper remote tune when my car is done.....
Will recommend you stay away from former Lethal Performance which is now Performance HQs. They somehow have an OK rep, but never got my buddies car right after he poured money into it and did everything they suggested! It wasn't his car as it runs like stock now with a centri, built motor, cam, E85....
What kit did you go with OP? I'm looking at buying a hellion hellraiser kit that's used and going the same route. Would like to know what you think of it so far!