Holley

Sniper EFI 553-115 3.5" Touch Screen LCD Handheld Controller

This 3.5" Touch Screen LCD Handheld Controller gives you access to a wide range of tuning options. Additionally this display can be used as a fully customizable data monitor! With this 3...

Holley EFI 553-112 - 6.86" Pro Dash

Holley's new 6.86" Pro Dash delivers over 200 monitoring channels of reliable real-time data in a more compact, full HD package suitable for nearly any motorsports application. Be...

Holley EFI Terminator X 550-905 for GEN IV 4.8/5.3/6.0 GM Truck Engines & LS2/LS3 - 58x Crank - 4x Cam - EV6 Injectors - 3.5 in. Touchscreen

Take control of your LS engine with Terminator X! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel...

Holley EFI 553-109 7" StandAlone Digital Dash Kit

HOLLEY STANDALONE DIGITAL DASH KIT 7" Digital Dash, Compact & Fully Customizable! Have you been looking for a dash solution for your vehicle, but just cannot find anything you like or...

Holley Performance 554-155 Wideband Oxygen Sensor for Sniper EFI &Terminator X

HOLLEY EFI OXYGEN SENSOR 554-155 Replacement Sniper and Terminator X O2 Sensor Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. Anti-Seize pre-applied to...

Holley Performance 550-511-3PX Sniper 2 EFI - Black

Holley Performance 550-510-3XX Sniper 2 EFI - Shiny - Without PDM

Holley Performance 550-510-3PX Sniper 2 EFI - Shiny

Holley 550-511-3XX Sniper 2 EFI Base Kit - Without PDM - 3.5 in. Handheld

The #1 EFI conversion system just got better! Introducing Sniper 2 EFI - a self-tuning, easy-to-install, EFI conversion for common 4-barrel (4150 flange) style carburetors. We took everything...

Holley EFI Terminator X 550-904 for GEN III 4.8/5.3/6.0 GM Truck Engine - 24x Crank - 1x Cam - Multec 2 Injectors - 3.5 in. Touchscreen

Take control of your LS engine with Terminator X! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel...

Holley EFI Terminator X Stealth 4150 - Black - 550-1002- 4 Injectors - 650 HP

The Terminator X Stealth 4150 EFI system from Holley features 4, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 HP on forced induction applications. The...

Holley EFI Terminator X Stealth 4150 - Black - 550-1005 - 8 Injectors - 800-1500 HP

The Terminator X Stealth 4150 1250HP EFI system from Holley features 8, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 1250 HP on forced induction...