Hypertech 358781 Hypertech Street Runner Power Chips Catalytic Converters Part 18658 is configured for

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

Part 12354 is configured for its specific application with attention to fitment requirements

predictable vehicle handling and even tire wear

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

mandrel-formed inlet and outlet pipes

Hypertech 358781 Hypertech Street Runner Power Chips Catalytic Converters Part 18658 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