2017 – 2018 L5P DURAMAX CUSTOM TUNING

L5P Tuning and selections are now available! We VERY strongly recommend that you purchase TCM Tuning alongside this package.

A modified HP Tuners L5P E41 ECM is required to allow flashing. Purchasing an ECM will require a Core Charge. A core charge is collected to insure our ECM exchange. We will provide you with a modified ECM upon purchase. Your core charge is immediately refunded when your factory ECM has been received by us. This exchange leaves your vehicle with little to zero down time.

The MPVI2 from HP TUNERS is required to flash your modified L5P ECM

$3,898.89

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