If you're willing to travel to PA, I'd recommend Evans Tuning. I'm new to Evos but I know they tune both 4G63 and 4B11, Cobb AP and EcuFlash. I used Jeff from my S2000 before this and it ran like a dream.
I will say tho, they aren't cheap and the cost goes up if you're doing multiple fuel types.
I don't know anyone that i'd put my name on closer.
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