Actually on the 99 newer cars you can't calibrate the speedo with a gear like the T-5's. You have to but a speedo calibrator or something like that. I think Sean Hyland (overpriced) and Houston Performance sell them, or you can have a custom chip burned for them.
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00 GT, MAC Offroad H, Steeda Pulleys, Steeda Timing Adjuster, FMS 4.10’s, Flows w/turndowns, UPR shifter, UPR subframes, UPR LCA’s, Air Filter, Lakewood 70/30 & 50/50, Weld Pro Stars, Nitto DR’s, 253.8RWHP/292.8RWTQ
Best on DR's 13.09@103.92 (1.81 60ft)
Best on ET Drags 12.99@104.60 (1.67 60ft)
M/M 100
88 LX coupe X-FHP, 12pt Cage, UPR K-member, 31 spline rear, full spool…
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