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FWIW...
Ive been driving my NA for 3 years with the autothority chip. I recently removed it and put the factory chip back in. to be completely honest, i see no difference in performance. ZERO. infact, i almost feel like the car runs smoother. ??
The car has run well with the AT chip in it, im probably just going to leave the stock chip in.
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1995 993 C2
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