Hypertech 120512 Hypertech ThermoMaster Computer Chips Timing Belts Designed for direct bolt-on fitment

Designed for direct bolt-on fitment at the factory sway bar mounting points

and sealed motor structures that resist moisture

Product 49666 is verified for correct specifications and dimensional accuracy before shipment

The hub-centric design ensures precise wheel centering on the vehicle hub to eliminate vibration

Hypertech 120512 Hypertech ThermoMaster Computer Chips Timing Belts Designed for direct bolt-on fitmentThe Hypertech 120512 Hypertech ThermoMaster Computer Chips is a classic ECM performance upgrade from Hypertech that replaces your vehicle's stock calibration EPROM with a professionally tuned chip. For a wide range of GM, Ford, and Chrysler vehicles with OBD I and early OBD II ECUs, the ThermoMaster optimizes air fuel ratios, ignition timing, and rev limiters for real world power gains. It's the original plug in performance chip no wires, no modules,