i have the exact same one for the RPM you can adjust it just by reading the manual on how to i know you get to the rpm part then click i think M then rev it to 2k rpm and itll beep i think as for your MPH mines is off too by about 3mph
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88turbo targa-white
original Pin Stripe
custom intake-Tenzo filter.....Momo racing seats and steering wheel...
apexi exhaust tip-custom 3" piping. Replaced with RSR GT II
NGK plug and wires
HID conversion head lights
HKS Turbo Timer Type-1 (in black)
Tial BOV
BIC DDP
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