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EFI Systems

EFI Performance Tuning 

EFI performance tuning is a game-changer for anyone looking to squeeze every last ounce of efficiency and horsepower from their engine. Scram Speed offers a wide variety of tools for dialing in the perfect tune. Whether you’re just starting out or chasing tenths at the track, our EFI performance tuning products make setup and adjustment straightforward.

Looking for simplicity? The self-tuning Holley EFI system is a favorite among our clients for its plug-and-play ease. It’s ideal for builders who want results without constant fiddling. Our team is always on hand to help you select the right components to get your setup running flawlessly. Reach out to Scram Speed today for expert support and to take your EFI performance tuning to the next level.

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  • Holley Performance Parts – EFI, Intakes, & More Holley 558-497 SNIPER 2 I/O HARNESS, multicolored automotive wiring harness with connector.

    Holley Performance Parts – EFI, Intakes, & More

    Holley 558-497 SNIPER 2 I/O HARNESS

    This harness gives you the access to 2 Ground Trigger Inputs, 2 Ground Trigger Outputs, also the Points Output, Tachometer output, and Digital Gauge Output Wires. The Input Grounds can be used for things such as AC Kick, and nitrous stage activation! The...

    MSRP: $51.72
    $47.81
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  • Holley Performance Parts – EFI, Intakes, & More Holley 558-495 M8 TO CAN USB DONGLE, a black USB dongle with cable for EFI tuning and engine management.

    Holley Performance Parts – EFI, Intakes, & More

    Holley 558-495 M8 TO CAN USB DONGLE

    The CAN to USB communication cable provides the user with real tuning time access to the ECU. This cable can be used with Sniper 2 EFI Tuning Software. Which can be downloaded for free from the Support section of our website! Features: 8’...

    MSRP: $92.95
    $85.79
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  • Holley Performance Parts – EFI, Intakes, & More Holley 526-9 EFI Fuel Tank Kit, 20 FT, W/O Return, image showing black fuel hose, metal fuel filter, fittings, and hose clamps for automotive fuel system installation.

    Holley Performance Parts – EFI, Intakes, & More

    Holley 526-9 EFI FUEL TANK KIT, 20 FT, W/O RETURN

    Holley EFI fuel kits are the perfect addition to your Sniper EFI or Holley EFI kit. They are engineered using a Holley fuel filter coupled with quality Earl's Vapor Guard plumbing to provide a fuel system tailored to the needs of your EFI System. The...

    MSRP: $287.95
    $259.95
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  • Holley Performance Parts – EFI, Intakes, & More Holley 526-5 FUEL SYSTEM KIT, VAPOR GUARD, W/O RETURN, with fuel hoses, injectors, filters, and installation accessories.

    Holley Performance Parts – EFI, Intakes, & More

    Holley 526-5 FUEL SYSTEM KIT, VAPOR GUARD, W/O RETURN

    Holley EFI fuel kits are the perfect addition to your Sniper EFI or Holley EFI kit. They are engineered using Holley fuel pumps, regulators and filters coupled with quality Earl's plumbing to provide a fuel system tailored to the needs of your EFI System...

    MSRP: $506.95
    $467.95
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  • Holley Performance Parts – EFI, Intakes, & More Holley 554-200 SNIPER 2 PDM, Automotive electronic control module for engine management.

    Holley Performance Parts – EFI, Intakes, & More

    Holley 554-200 SNIPER 2 PDM

    The Power Distribution Module (PDM) is a cost-effective and optional accessory that isolates the core of your EFI and ignition wiring into one, easy to use location. Simply slide the stripped wire ends under the positive lock connector and tighten down...

    MSRP: $218.95
    $199.95
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  • Holley Performance Parts – EFI, Intakes, & More Holley 543-105 IDLE AIR CONTROL MOTOR, black cylindrical idle air control valve with mounting flange and brass tip.

    Holley Performance Parts – EFI, Intakes, & More

    Holley 543-105 IDLE AIR CONTROL MOTOR

    Replacement Idle Air Control (IAC) Motor for Sniper EFI TBI Systems, Sniper 90/92/102mm Throttle Bodies, Terminator TBI, Avenger 4bbl TBI, HP 4bbl TBI, Commander 950 & Digital Pro-Jection Systems. One of the signs of a vehicle with a rough idle is a...

    MSRP: $100.95
    $93.25
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  • Holley Performance Parts – EFI, Intakes, & More Holley 556-154 Hyperspark 2 Ignition Box, compact black ignition box with dimensions 3.3 x 3.8 inches, lightweight design, and green power indicator light.

    Holley Performance Parts – EFI, Intakes, & More

    Holley 556-154 Hyperspark 2 Ignition Box

    Direct upgrade for existing HyperSpark ignition box, featuring a smaller form factor and hotter spark. This low profile box can fit nearly anywhere inside of your engine bay or cockpit. The HyperSpark 2 ignition box packs all of the proven features of...

    MSRP: $461.95
    $415.95
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  • Holley Performance Parts – EFI, Intakes, & More Holley 558-465 Wiring Harness, CAN Splitter, black braided cable with multiple connectors for automotive wiring and electronic component connections.

    Holley Performance Parts – EFI, Intakes, & More

    Holley 558-465 WIRING HARNESS, CAN SPLITTER

    The Holley EFI CAN splitter allows you to add an additional CAN device to your Sniper EFI or Terminator X installation, without needing to unplug the handheld. This easy to install CAN splitter simply plugs into the CAN connector on your main harness,...

    MSRP: $53.02
    $49.95
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  • Holley Performance Parts – EFI, Intakes, & More Holley 558-489 SNIPER 2 TO SNIPER 1 ADAPTER HARNESS, automotive wiring harness for fuel injection system connection.

    Holley Performance Parts – EFI, Intakes, & More

    Holley 558-489 SNIPER 2 TO SNIPER 1 ADAPTER HARNESS

    Want to make the switch from the original Sniper EFI to Sniper 2 and don't want to rewire your system? This harness is designed to do exactly that! The Sniper adapter harness is a plug-and-play solution to connect your existing Sniper 1 wiring harness to...

    MSRP: $64.95
    $59.79
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  • Holley Performance Parts – EFI, Intakes, & More Holley 543-111 Throttle Position Sensor for Terminator and Sniper EFI, electronic throttle position sensor component for fuel injection systems.

    Holley Performance Parts – EFI, Intakes, & More

    Holley 543-111 Throttle Position Sensor for Terminator and Sniper EFI

    This Throttle Position Sensor fits all Terminator 4150 Throttle Bodies, and Sniper EFI 4150 Throttle Bodies. Additionally, it is the service replacement sensor for the following: 502-9,112-577,112-578,112-587,112-588.

    MSRP: $100.95
    $93.35
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  • Holley Performance Parts – EFI, Intakes, & More Holley 558-493 SNIPER EFI TO HOLLEY DUAL SYNC HARNESS, automotive engine wiring harness with electrical connectors and multi-color wires for vehicle wiring integration.

    Holley Performance Parts – EFI, Intakes, & More

    Holley 558-493 SNIPER EFI TO HOLLEY DUAL SYNC HARNESS

    This ignition adapter ensures your Sniper EFI ignition installation is a snap! Simply plug up both connectors, terminate the Pink Wire to a Switched 12v Ignition Source, and you're finished. Features: Plug and Play Adapter for Sniper EFI with Holley...

    MSRP: $54.03
    $49.95
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  • Holley Performance Parts – EFI, Intakes, & More Holley 553-200 HOLLEY EFI 5 IN DIGITAL DASH, a digital vehicle dashboard display showing tachometer, speedometer, and various data readouts.

    Holley Performance Parts – EFI, Intakes, & More

    Holley 553-200 HOLLEY EFI 5 IN DIGITAL DASH

    The Holley EFI 5-inch Digital Dash comes out of the box, ready to plug and play with your Gen 1 Sniper EFI, Terminator X or X MAX, and Holley EFI Dominator or HP ECU. The 5-inch digital touch screen display is pre-loaded with 3 easy to read layouts that...

    MSRP: $544.95
    $507.95
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  • Holley Performance Parts – EFI, Intakes, & More Holley 534-247 VAPOR GUARD FUEL LOG SNIPER/TERMX STEALTH, black vapor guard fuel log with fittings and hose for fuel delivery system.

    Holley Performance Parts – EFI, Intakes, & More

    Holley 534-247 VAPOR GUARD FUEL LOG SNIPER/TERMX STEALTH

    The Holley EFI Stealth 4150 Fuel Log is designed to be used with either Sniper EFI Stealth 4150 or Terminator X Stealth 4150 systems. This pre-assembled fuel cross over is designed to provide ample clearance between the fuel hose, and the TPS sensor...

    MSRP: $86.95
    $80.05
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  • Holley EFI Holley 550-510-3XX Sniper 2 EFI-Shiny, shiny silver electronic fuel injection system with a digital display control unit.

    Holley EFI

    Holley 550-510-3XX Sniper 2 EFI-Shiny

    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 that we learned from the original Sniper EFI system and added...

    MSRP: $1,574.95
    $1,449.95
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