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Holley
Holley UK – Carburetors, EFI Systems & Performance Parts Holley is a legendary name in the world of performance. Since 1903, Holley has been at the forefront of fuelling technology, powering everything from classic hot rods to modern race cars....
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Holley Sniper EFI 553-200x
NG HOLLEY EFI 5 IN DIGITAL DASH - Sniper 2 EFI 5'' Digital Dash
Designed for Sniper 2 only, see Holley P/N...
Part TypeDriver Information Display£496.00 inc VAT£413.33 ex VAT -
Holley Sniper EFI 551-103
TRANS CONTROLLER, SNIPER 2 - Sniper 2 Transmission Control Kit
MAP sensor is needed if using MAP for...
Part TypeAutomatic Transmission Control Module£613.99£526.00 inc VAT£438.33 ex VAT -
Holley Sniper EFI 558-489
SNIPER 2 TO SNIPER 1 ADAPTER HARNESS - Sniper 1 to Sniper 2 EFI Adapter Harness
Eliminates the need to rewire your existing Sniper...
Part TypeEngine Control Module (ECM) Wiring Harness£64.00 inc VAT£53.33 ex VAT -
Holley Sniper EFI 550-510-bpk-sbc
SNIPER 2 BLE PDM MSTR KIT, POL, 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 550-510-bpx-sbc
SNIPER 2 BLE PDM KIT, POLISHED, 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 550-510-bpx-sbf
SNIPER 2 BLE PDM KIT, POLISHED, 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 550-510-5px-sbf
SNIPER 2 5" PDM KIT, POLISHED, 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 550-511-5pk-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 550-510-5px-sbc
SNIPER 2 5" PDM KIT, POLISHED, 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-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-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-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 550-511-5ax
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 550-511-5pd
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 556-156
HYPERSPARK IGNITION BOX SERVICE HARNESS - Sniper EFI HyperSpark Ignition Box Service Harness
Replacement harness for HyperSpark and HyperSpark 2 Ignition...
Part TypeIgnition Harness£41.99 inc VAT£34.99 ex VAT -
Holley Sniper EFI 550-511-3ax
SNIPER 2 UPGRADE KIT - BLACK - Holley Sniper 2 EFI - Black
Base Sniper 1 to Sniper 2 Upgrade Kit
Part TypeFuel Injection Conversion Kit£1,228.00£1,144.00 inc VAT£953.33 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 550-510-bxx
SNIPER 2 BLE KIT, POLISHED - Holley Sniper 2 EFI - Polished
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£1,330.00£1,219.00 inc VAT£1,015.83 ex VAT -
Holley Sniper EFI 550-511-3pd
SNIPER 2 PDM 3.5 RETURNLESS KIT BLACK - Holley Sniper 2 EFI - Black
Returnless Style Drop-In Module - With PDM -...
Part TypeFuel Injection Conversion Kit£2,148.98£1,987.00 inc VAT£1,655.83 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 550-511-5px-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 550-511-5xd
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 550-510-bax
SNIPER 2 UPGRADE BLE, POLISHED - Holley Sniper 2 EFI Upgrade Bluetooth Module Kit - Polished
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 550-510-bxr
SNIPER 2 BLE RETURN KIT, POLISHED - Holley Sniper 2 EFI - Polished
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-bxx
SNIPER 2 BLE KIT, BLACK - Holley Sniper 2 EFI - Black
Nitrous Control Not Supported In Sniper 2 EFI...
Part TypeFuel Injection Conversion Kit£1,330.00£1,219.00 inc VAT£1,015.83 ex VAT
Holley UK – Carburetors, EFI Systems & Performance Parts
Holley is a legendary name in the world of performance. Since 1903, Holley has been at the forefront of fuelling technology, powering everything from classic hot rods to modern race cars. Known for their carburetors, EFI systems, fuel pumps, and complete performance solutions, Holley remains the first choice for enthusiasts worldwide.
The Holley Legacy
Holley carburetors became an icon in American muscle cars and motorsport, appearing on millions of vehicles over the decades. Today, Holley’s reach extends far beyond carburetion, with a massive catalogue that includes EFI systems, intake manifolds, exhaust solutions, ignition systems, and even full fuel delivery kits.
Why Enthusiasts Choose Holley
- Unmatched History: Over 100 years of performance innovation.
- Complete Solutions: Everything from fuelling to exhaust under one brand family.
- Motorsport Proven: Trusted in drag racing, circle track, and street performance applications.
- Modern Technology: Cutting-edge EFI systems that bring classic builds into the future.
Popular Holley Products
- Holley 4150 & 4160 Carburetors
- Sniper EFI Conversion Kits
- Holley Terminator X Engine Management
- Fuel Pumps & Regulators
- Holley Intake Manifolds
Holley in the UK
Billy’s Speed Shop brings Holley performance parts to the UK, eliminating the cost and hassle of importing. Whether you’re restoring a classic V8, tuning a modern LS swap, or building a drag car, Holley offers the solutions you need – available now with fast UK delivery.
Fuel your project with Holley UK performance parts – order today at Billy’s Speed Shop.



