HP EFI ECU & Harness Kits - 550-603N distributors-and-parts Year Make Model Submodel Engine

Year Make Model Submodel Engine Size 1980 Cadillac Seville     1973 Pontiac GTO     1974 GMC P15/P1500 Van     1974 GMC P25/P2500 Van     1974 GMC P35/P3500 Van     1973 Buick Centurion     1973 Pontiac LeMans Safari 250/4

it delivers a moderate exterior tone and a mild interior tone and is suited to the enthusiast who wants a subtle but distinctive performance exhaust note

Plumbs Near Carb

The American Thunder® exhaust systems are the perfect choice for the person wanting a deep powerful tone outside

Uses the factory hanger locations for easy installation

HP EFI ECU & Harness Kits - 550-603N distributors-and-parts Year Make Model Submodel EngineOverview: Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water meth? This HP EFI kit can control that too! Features: Simple Installation Plug and Play control of GM LS2 LS3 LS7 engines. Just plug the harness into your factory