Fel-Pro Headbolt Kits 5.7/6.4/6.1/6.2 Hemi Engines 2003-2023 Exhaust Parts Free-air calibration may correct drift

Free-air calibration may correct drift as a sensor ages

The maximum output voltage range is user selectable and is controlled by a knob in the faceplate

Product Specifications:

Manufacturer's Product Number: ESRT8

The Commander PRO was specifically designed for improved injector function in forced induction and large injector environments

Fel-Pro Headbolt Kits 5.7/6.4/6.1/6.2 Hemi Engines 2003-2023 Exhaust Parts Free-air calibration may correct driftPrice is for 1 Head, Each Car requires 2 sets Fel Pro headbolt kits contain a complete set of the highest quality headbolts and hardened washers available. They're cold formed to ensure molecular integrity, then heat treated prior to thread rolling and machining. Reduced diameter bolt heads eliminate the need for valvetrain removal and facilitate cylinder head re torquing. The bolts are available in a variety of head styles for fitment on specific