Holley 120 lb/hr EV1 Performance Fuel Injectors 522-128 Holley EV1, Low Impedance type Performance Fuel Injectors features high quality brass winding, a precision disc valve with high temperature o-rings. They are available from 19 lb/he to 168 lb/hr...

Holley 160 lb/hr EV1 Performance Fuel Injectors 522-160 Holley EV1, Low Impedance type Performance Fuel Injectors features high quality brass winding, a precision disc valve with high temperature o-rings. They are available from 19 lb/he to 168 lb/hr...

Edge Gas Evolution CS2 1999-2016 Programmer 85350 50 State Legal for all gas thru 2016, LEV 3 pending D-541-9/D-541-17 A Great Stride in Evolution Edges Evolution CS is a crowd favorite so why fix something isn't broken. Believe us when we tell you, we...

FAST Air/Fuel Ratio Meter 170401 A must have for your tuning tool box! Accurately measure you air to fuel ratio to prevent premature engine failure. Features: Built-in Data Logging with On-Screen Play Back Full Graphic, Easy to Use Display Single Sensor

FAST Air/Fuel Ratio Meter 170402 A must have for your tuning tool box! Accurately measure your air to fuel ratio to prevent premature engine failure. Features: Built-in Data Logging with On-Screen Play Back Full Graphic, Easy to Use Display Dual Sensors...

Holley Terminator GM LS 4.8,5.3,6.0L 24x MPFI Kit 550-614 Features: For 1997 to 2007 4.8/5.3/6.0 truck engines with 24x crank reluctor/span> Kit includes everything you need to control your stock or mild LS Bosch wideband oxygen sensor...

Holley Terminator GM LS 58x MPFI Kit w/ DBW & Trans Control 550-613 Features: For GM LS2/3 engines and 2007 to current 4.8/5.3/6.0 truck engines with 58x crank reluctor, drive-by-wire, and 4L60/4L80E transmissions Kit includes everything you...

Holley HP EFI GM LS 58x ECU & Harness Kit w/ NTK O2 550-607N Features & Benifits: Intuitive software and features designed for novice and veteran tuners  Fuel and Ignition Control for 4, 6, 8, 10 cylinder even fire...

Holley HP EFI GM LS 58x ECU & Harness Kit w/ Bosch O2 550-607 Features & Benifits: Intuitive software and features designed for novice and veteran tuners  Fuel and Ignition Control for 4, 6, 8, 10 cylinder even fire...

Holley HP EFI GM LS 58x ECU & Harness Kit w/ NTK O2 550-603N Features & Benifits: Intuitive software and features designed for novice and veteran tuners  Fuel and Ignition Control for 4, 6, 8, 10 cylinder even fire...

Holley HP EFI GM LS 58x ECU & Harness Kit w/ Bosch O2 550-603 550-602 Features & Benifits: Intuitive software and features designed for novice and veteran tuners  Fuel and Ignition Control for 4, 6, 8, 10 cylinder even fire...

Holley HP EFI GM LS 24x ECU & Harness Kit w/ NTK O2 550-602N Features & Benifits: Intuitive software and features designed for novice and veteran tuners  Fuel and Ignition Control for 4, 6, 8, 10 cylinder even fire...