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classic truck
and a precision-wound stator engineered for sustained output at low RPM
The Hypertech 121062 Hypertech ThermoMaster Computer Chips from Hypertech is a direct-replacement EPROM chip that reprograms your vehicle's ECM with optimized calibration data
Product 21922 is verified for correct specifications and dimensional accuracy before shipment
These heads accept standard intake manifolds
Hypertech 128831 Hypertech Street Runner Power Chips COMP Cams Aluminum Roller Rocker Arms classic truckHypertech's Hypertech 128831 Hypertech Street Runner Power Chips delivers old school ECU tuning that defined the aftermarket for decades. By swapping the factory EPROM in your ECM for this pre programmed performance chip, you gain optimized fuel mapping, advanced timing, and refined transmission behavior. The Street Runner line covers a broad range of GM, Ford, Mopar, and import applications. This listing is for part number 128831. Gains of 10 20 HP
