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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 EFI 558-462
Holley EFI Terminator X Input/Output Harness
for use with Terminator X and X MAX...
Part TypeWiring Harness£46.99 inc VAT£39.16 ex VAT -
Holley EFI 554-152
Holley EFI Terminator X Service ECU - Compatible with Terminator X Harnesses
ECU is not recommended for marine applications, but...
Part TypeEngine Control Module (ECM)£913.99 inc VAT£761.66 ex VAT -
Holley EFI 553-201
Holley EFI Terminator X Handheld Controller - 3.5 in. LCD Touchscreen
Only compatible with Terminator X EFI systems.
Part TypeFuel System Controller£367.00£361.99 inc VAT£301.66 ex VAT -
Holley EFI 550-1219
Holley EFI Terminator X - Ford Mod Motor 4V Kit - Compatible w/ Stock Coils and EV6 injectors
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£1,994.99£1,924.99 inc VAT£1,604.16 ex VAT -
Holley EFI 550-1218
Holley EFI Terminator X - Ford Mod Motor 4V Kit - Compatible w/ Stock Coils and EV1 injectors
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£1,994.99£1,924.99 inc VAT£1,604.16 ex VAT -
Holley EFI 550-1217
Holley EFI Terminator X - Ford Mod Motor 2V Kit - Compatible w/ Stock Coils and EV6 injectors
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£1,994.99£1,924.99 inc VAT£1,604.16 ex VAT -
Holley EFI 550-1216
Holley EFI Terminator X - Ford Mod Motor 2V Kit - Compatible w/ Stock Coils and EV1 injectors
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£1,994.99£1,924.99 inc VAT£1,604.16 ex VAT -
Holley EFI 550-1221
Holley EFI Terminator X - Ford Mod Motor 2V/4V Kit - Compatible w/ Smart coils and EV6 injectors
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£1,994.99£1,924.99 inc VAT£1,604.16 ex VAT -
Holley EFI 550-1220
Holley EFI Terminator X - Ford Mod Motor 2V/4V Kit - Compatible w/ Smart coils and EV1 injectors
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£1,994.99£1,924.99 inc VAT£1,604.16 ex VAT -
Holley EFI 550-1319
Holley EFI Terminator X Max - 4V Ford Mod Motor - Stock Coils
ECU is not recommended for marine applications, but...
Part TypeFuel Injection System£2,352.98£2,224.99 inc VAT£1,854.16 ex VAT -
Holley EFI 550-1318
Holley EFI Terminator X Max - 4V Ford Mod Motor - Stock coils
ECU is not recommended for marine applications, but...
Part TypeFuel Injection System£2,352.98£2,224.99 inc VAT£1,854.16 ex VAT -
Holley EFI 550-1317
Holley EFI Terminator X Max - 2V Ford Mod Motor - Stock Coils
ECU is not recommended for marine applications, but...
Part TypeFuel Injection System£2,352.98£2,224.99 inc VAT£1,854.16 ex VAT -
Holley EFI 550-1316
Holley EFI Terminator X Max - 2V Ford Mod Motor - Stock coils
ECU is not recommended for marine applications, but...
Part TypeFuel Injection System£2,352.98£2,224.99 inc VAT£1,854.16 ex VAT -
Holley EFI 550-1425
Holley EFI Terminator X Max - 2013+ Gen III HEMI - EV6 Injectors
ECU is not recommended for marine applications, but...
Part TypeFuel Injection System£2,352.98£2,224.99 inc VAT£1,854.16 ex VAT -
Holley EFI 550-1423
Holley EFI Terminator X Max - 2007-2012 Gen III HEMI - EV6 Injectors
ECU is not recommended for marine applications, but...
Part TypeFuel Injection System£2,352.98£2,224.99 inc VAT£1,854.16 ex VAT -
Holley EFI 550-1424
Holley EFI Terminator X Max - 2013+ Gen III HEMI - EV1 Injectors
ECU is not recommended for marine applications, but...
Part TypeFuel Injection System£2,352.98£2,224.99 inc VAT£1,854.16 ex VAT -
Holley EFI 550-1422
Holley EFI Terminator X Max - 2007-2012 Gen III HEMI - EV1 Injectors
ECU is not recommended for marine applications, but...
Part TypeFuel Injection System£2,352.98£2,224.99 inc VAT£1,854.16 ex VAT -
Holley EFI 550-1512
Holley EFI Terminator X Max - 2015.5-2017 Ford Coyote w/ Ti-VCT - EV6 Injectors
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£3,427.00£3,244.99 inc VAT£2,704.16 ex VAT -
Holley EFI 550-1413
Holley EFI Terminator X Max - 2015.5-2017 Ford Coyote w/ Ti-VCT - EV6 Injectors
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£3,427.00£3,244.99 inc VAT£2,704.16 ex VAT -
Holley EFI 550-1412
Holley EFI Terminator X Max - 2015.5-2017 Ford Coyote w/ Ti-VCT - EV1 Injectors
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£3,427.00£3,244.99 inc VAT£2,704.16 ex VAT -
Holley EFI 550-1420
Holley EFI Terminator X Max - 2003-2006 Gen III HEMI - EV1 Injectors
ECU is not recommended for marine applications, but...
Part TypeFuel Injection System£2,352.98£2,224.99 inc VAT£1,854.16 ex VAT -
Holley EFI 550-1315
Holley EFI Terminator X Max - 2015.5-2017 Ford Coyote w/ Ti-VCT - EV6 Injectors
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£3,427.00£3,244.99 inc VAT£2,704.16 ex VAT -
Holley EFI 550-1312
Holley EFI Terminator X Max - 2013-2015 Ford Coyote w/ Ti-VCT - EV1 Injectors
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£3,427.00£3,244.99 inc VAT£2,704.16 ex VAT -
Holley EFI 550-1313
Holley EFI Terminator X Max - 2013-2015 Ford Coyote w/ Ti-VCT - EV6 Injectors
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£3,427.00£3,244.99 inc VAT£2,704.16 ex VAT -
Holley EFI 550-1510
Holley EFI Terminator X Max - 2013-2015 Ford Coyote w/ Ti-VCT - EV6 Injectors
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£3,427.00£3,244.99 inc VAT£2,704.16 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.



