gt93 how do yo recalibrate it with out sending it back?
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'91 GT,91K,T-5,air silencer removed,racing clutch(previous owner put in so dont know what kind),K&N air filter,Aiwa deck,power acoustic amp,2 12" pianeers,UPDATE: Just got my Mac long tube headers and Cat-back
Future Mods:3.73's,Pro 5.0,Shifter knob,FMS 9mm wires
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