well i don't know what to tell you man. he has always done beyond excellent work on my car and my friends cars. now scott on the other hand gave me my car back detonating and couldn't figure out why even though he had 3 1/2 weeks with it. and carlos fixed it in literally 5 minutes. i would never take a car to mazsport. but just my opinion. they don't know what they are doing there. carlos is proven.