Hypertech 129071 Hypertech Street Runner Power Chips Bestop Windshield Channels The stem is centerless ground

The stem is centerless ground with a multi-angle back cut on the head for flow improvement

and installation instructions

Upgrade to polyurethane with this bushing set

Whether you are reducing noise on a performance car

Hypertech 129071 Hypertech Street Runner Power Chips Bestop Windshield Channels The stem is centerless groundHypertech's Hypertech 129071 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 129071. The Street Runner