Re: Speedo and Hypertech?(not the bathing suit)
Had to have my cluster replaced on 05 model with just 9000 miles on it. I had been running hypertech most of the time and after new cluster continued to run hypertech. What ever adjustment to tire size worked as should just as it did till cluster went bad just out of the blue one day. I could tell I was going faster than speedo said I was. Dealer confirmed and changed it out. They knew I was running hypertech said very quickly it was not the programmer fault.
TAZ
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05 H2 SUV cus. paint, Magnuson SC 6/12lb boost, cowl hood scoop, 12" dash touchscreen, GM elec. fans, HPTuners.com tuning soft., Dynatech headers dual catback exhaust Jet Hot chrome front to back Flowmaster Super 40's, Diamo 8 Karat rims & 325X60-20" Toyo, 4 OEM Captain seats Katzkins leather, rear console computer inside running all AV/NAV etc., Infinity component system 3 amps Tsunami Caps, rear flip down 12" monitor, headrest monitors, overhead console boost, fuel pressure, & A/F ratio gauges
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