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Sniper EFI
Sniper EFI UK – Electronic Fuel Injection Conversion Systems Sniper EFI, a division of Holley, brings modern fuel injection technology to classic carburetted engines. Designed for easy installation and reliable performance, Sniper EFI systems are one of the most popular...
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Holley Sniper EFI 550-511-bxd
SNIPER 2 BLE RETURNLESS KIT, BLACK - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£1,943.99£1,805.99 inc VAT£1,504.99 ex VAT -
Holley Sniper EFI 550-511-bpx-sbf
SNIPER 2 BLE PDM KIT, BLACK, SBF IGN - Sniper 2 EFI Bundle with HyperSpark Ignition System
Nitrous Control not supported in Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,045.99£1,897.00 inc VAT£1,580.83 ex VAT -
Holley Sniper EFI 550-511-bpx-sbc
SNIPER 2 BLE PDM KIT, BLACK, SBC IGN - Sniper 2 EFI Bundle with HyperSpark Ignition System
Nitrous Control not supported in Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,045.99£1,897.00 inc VAT£1,580.83 ex VAT -
Holley Sniper EFI 550-511-bpx
SNIPER 2 BLE PDM KIT, BLACK - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£1,432.00£1,309.99 inc VAT£1,091.66 ex VAT -
Holley Sniper EFI 550-511-bpr
SNIPER 2 BLE PDM RETURN KIT, BLACK - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,045.99£1,897.00 inc VAT£1,580.83 ex VAT -
Holley Sniper EFI 550-511-bpk-sbf
SNIPER 2 BLE PDM MSTR KIT, BLK, SBF IGN - Sniper 2 EFI Bundle with HyperSpark Ignition System
Nitrous Control not supported in Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,454.98£2,257.99 inc VAT£1,881.66 ex VAT -
Holley Sniper EFI 550-511-bpk-sbc
SNIPER 2 BLE PDM MSTR KIT, BLK, SBC IGN - Sniper 2 EFI Bundle with HyperSpark Ignition System
Nitrous Control not supported in Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,454.98£2,257.99 inc VAT£1,881.66 ex VAT -
Holley Sniper EFI 550-511-bpk
SNIPER 2 BLE PDM MASTER KIT, BLACK - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£1,840.99£1,715.99 inc VAT£1,429.99 ex VAT -
Holley Sniper EFI 550-511-bpd
SNIPER 2 BLE PDM RETURNLESS KIT, BLACK - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,045.99£1,897.00 inc VAT£1,580.83 ex VAT -
Holley Sniper EFI 550-511-bax
SNIPER 2 UPGRADE BLE, BLACK - Holley Sniper 2 EFI Upgrade Bluetooth Module Kit - Black
Sniper 2 Upgrade kit With Bluetooth Module -...
Part TypeFuel Injection Conversion Kit£1,049.99£1,006.99 inc VAT£839.16 ex VAT -
Holley Sniper EFI 550-511-bae
SNIPER 2 UPGRADE BLE W/REG, BLACK - Holley Sniper 2 EFI Upgrade Bluetooth Module Kit w/ Regulator - Black
Complete Sniper 2 Upgrade Kit with Fuel System...
Part TypeFuel Injection Conversion Kit£1,228.00£1,144.00 inc VAT£953.33 ex VAT -
Holley Sniper EFI 550-511-5xx
SNIPER 2 BLACK 5" TSLCD KIT - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£1,585.99£1,489.99 inc VAT£1,241.66 ex VAT -
Holley Sniper EFI 550-511-5xr
SNIPER 2 BLACK 5" RETURN RETROFIT - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,199.98£2,032.00 inc VAT£1,693.33 ex VAT -
Holley Sniper EFI 550-511-5xk
SNIPER 2 BLACK 5" EXTERNAL MASTER KIT - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£1,994.99£1,850.99 inc VAT£1,542.49 ex VAT -
Holley Sniper EFI 550-511-5xd
SNIPER 2 BLACK 5" RETURNLESS RETROFIT - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,199.98£2,032.00 inc VAT£1,693.33 ex VAT -
Holley Sniper EFI 550-511-5px-sbf
SNIPER 2 5" PDM KIT, BLACK, SBF IGN - Sniper 2 EFI Bundle with HyperSpark Ignition System
Nitrous Control not supported in Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,249.99£2,076.98 inc VAT£1,730.82 ex VAT -
Holley Sniper EFI 550-511-5px-sbc
SNIPER 2 5" PDM KIT, BLACK, SBC IGN - Sniper 2 EFI Bundle with HyperSpark Ignition System
Nitrous Control not supported in Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,249.99£2,076.98 inc VAT£1,730.82 ex VAT -
Holley Sniper EFI 550-511-5px
SNIPER 2 PDM 5" TSLCD, BLACK - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£1,688.99£1,580.99 inc VAT£1,317.49 ex VAT -
Holley Sniper EFI 550-511-5pr
SNIPER 2 PDM 5" RETURN KIT BLACK - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,301.98£2,121.98 inc VAT£1,768.32 ex VAT -
Holley Sniper EFI 550-511-5pk-sbf
SNIPER 2 5" PDM MSTR KIT, BLK, SBF IGN - Sniper 2 EFI Bundle with HyperSpark Ignition System
Nitrous Control not supported in Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,669.99£2,482.99 inc VAT£2,069.16 ex VAT -
Holley Sniper EFI 550-511-5pk
SNIPER 2 PDM 5" MASTER KIT BLACK - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,097.98£1,942.00 inc VAT£1,618.33 ex VAT -
Holley Sniper EFI 550-511-5pd
SNIPER 2 PDM 5" RETURNLESS KIT BLACK - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£2,301.98£2,121.98 inc VAT£1,768.32 ex VAT -
Holley Sniper EFI 550-511-5ax
SNIPER 2 UPGRADE 5", BLACK - Holley Sniper 2 EFI Upgrade 5'' Kit - Black
Sniper 2 Update kit With 5-inch Dash
Part TypeFuel Injection Conversion Kit£1,381.00£1,280.99 inc VAT£1,067.49 ex VAT -
Holley Sniper EFI 550-511-5ae
SNIPER 2 UPGRADE 5" W/REG, BLACK - Holley Sniper 2 EFI Upgrade 5'' Kit w/ Regulator - Black
Complete Sniper 2 Upgrade Kit with Fuel System...
Part TypeFuel Injection Conversion Kit£1,483.99£1,372.99 inc VAT£1,144.16 ex VAT -
Holley Sniper EFI 550-511-3xx
SNIPER 2 EFI KIT - BLACK - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£1,432.00£1,309.99 inc VAT£1,091.66 ex VAT
Sniper EFI UK – Electronic Fuel Injection Conversion Systems
Sniper EFI, a division of Holley, brings modern fuel injection technology to classic carburetted engines. Designed for easy installation and reliable performance, Sniper EFI systems are one of the most popular upgrades for hot rods, muscle cars, and classic vehicles looking for improved drivability and efficiency.
Why Sniper EFI?
- Carburetor Replacement: Bolts in place of a 4-barrel carb for modern EFI reliability.
- Self-Tuning Technology: Learns and adapts to your engine as you drive.
- Improved Performance: Better cold starts, throttle response, and fuel efficiency.
Popular Sniper EFI Products
- Sniper 4150 EFI Conversion Kits
- Sniper Stealth EFI Systems
- Sniper EFI Fuel Pumps & Regulators
- Complete EFI Master Kits
Sniper EFI in the UK
Billy’s Speed Shop brings Sniper EFI kits to the UK, helping enthusiasts modernise their classic builds without losing vintage character. Whether you’re running a small-block Chevy, a Ford V8, or a custom engine, Sniper EFI offers the perfect balance of heritage and technology.
Upgrade your fuelling with Sniper EFI UK systems – available today at Billy’s Speed Shop.



