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

all big blocks except drag

Texaco ETL8072 B

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

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!