Hypertech 358781 Hypertech Street Runner Power Chips Catalytic Converters Part 51586 is configured for

Part 51586 is configured for its specific application with attention to fitment requirements

Product 37474 is verified for correct specifications and dimensional accuracy before shipment

Part 18658 is configured for its specific application with attention to fitment requirements

It meets SAE J1171 marine ignition protection standards and delivers reliable charging in corrosive environments where standard automotive alternators fail prematurely

and once installed

Hypertech 358781 Hypertech Street Runner Power Chips Catalytic Converters Part 51586 is configured forHypertech's Hypertech 358781 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 358781. Gains of 10 20 HP