HP EFI ECU & Harness Kits - 550-603N distributors-and-parts it delivers a moderate exterior

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

5 width 4 height 6

8 V8 2003 - 2008 Chevrolet Silverado 1500 325/5

Especially recommended for towing applications

HP EFI ECU & Harness Kits - 550-603N distributors-and-parts it delivers a moderate exteriorOverview: 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