HP EFI ECU & Harness Kits 1999 pontiac firebird State-of-the-art CNC machining and precision

State-of-the-art CNC machining and precision grinding deliver tight tolerances and consistent sealing for optimal engine performance

Strut Style: We need your help to ensure that your camber plates are being configured correctly to the "stem profile" of the strut shaft

all big blocks except drag

GM 93740319

HP EFI ECU & Harness Kits 1999 pontiac firebird State-of-the-art CNC machining and precisionLooking 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! Stop re flashing your factory ECU every time you make a performance modification. Get Holley EFI today!