Hypertech 158021 Hypertech Street Runner Power Chips Ignition Components and vehicles used for towing

and vehicles used for towing or off-road duty where cooling demands exceed factory capacity

preserving gear mesh under load

SKU 585154 is backed by the manufacturer's quality guarantee and our satisfaction commitment

Installation bolts to existing valve cover bolts or intake manifold threads using the included brackets — typically a 20-minute upgrade

Product 78722 is verified for correct specifications and dimensional accuracy before shipment

Hypertech 158021 Hypertech Street Runner Power Chips Ignition Components and vehicles used for towingHypertech's Hypertech 158021 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 158021. The Street Runner