Hypertech 730129 In-Line Speedometer Calibrator Module 20-23 GM 6.6L Duramax L5P MISH-MMRC-11-FRD not sacrificing reliability being this

not sacrificing reliability being this has brand new Holset electronics

upgrade your anchor points to these super strong assemblies from Mac's

0" mandrel-bent aluminum piping eliminates the restrictive stock resonator and improves flow by up to 55% over stock

Without the required vapor space in the tank

You will notice better response and higher overall boost levels

Hypertech 730129 In-Line Speedometer Calibrator Module 20-23 GM 6.6L Duramax L5P MISH-MMRC-11-FRD not sacrificing reliability being thisGet accurate speedometer readouts and proper shifts with the Hypertech Speedometer Calibrator for your L5P Duramax. Hypertech's In Line Speedometer Calibrator Module is a plug and play module that corrects the speedometer and odometer for non stock and or gear ratios. With the included USB cable, connect the Hypertech In Line Speedometer Calibrator to your PC and enter the new tire size and or rear gear ratio. There are no limitations to tire height