Hypertech ThermoMaster Computer Chips Eaton Posi Performance Differentials The progressive-rate design keeps compliance

The progressive-rate design keeps compliance over small bumps and firms up under compression

Recommended static compression ratio depends on the specific grind

The housing is precision-cast from high-strength aluminum alloy

The hollow construction saves 2

Hypertech ThermoMaster Computer Chips Eaton Posi Performance Differentials The progressive-rate design keeps complianceThe Hypertech ThermoMaster Computer Chips (ref 5762) is a classic ECM performance upgrade from Hypertech that replaces your vehicle's stock calibration EPROM with a professionally tuned chip. For selected GM, Ford, and Dodge vehicles from the 1990s and early 2000s, 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, no guesswork.