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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 550-942
Holley EFI Terminator X Max - Universal MPFI Kit - Universal MPFI Main Harness
Not recommended for 4x4 applications with electronic transfer...
Part TypeFuel Injection System£1,943.99£1,853.99 inc VAT£1,544.99 ex VAT -
Holley EFI 550-959
Holley EFI Terminator X Max - Universal MPFI Kit - Universal MPFI Main Harness
Not recommended for 4x4 applications with electronic transfer...
Part TypeFuel Injection System£2,148.98£2,039.99 inc VAT£1,699.99 ex VAT -
Holley EFI 550-945
Holley EFI Terminator X Max - Ford MPFI Kit - Universal MPFI Main Harness
Not recommended for 4x4 applications with electronic transfer...
Part TypeFuel Injection System£1,943.99£1,853.99 inc VAT£1,544.99 ex VAT -
Holley EFI 550-944
Holley EFI Terminator X Max - Ford MPFI Kit - Universal MPFI Main Harness
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£1,943.99£1,853.99 inc VAT£1,544.99 ex VAT -
Holley EFI 550-943
Holley EFI Terminator X Max - Ford MPFI Kit - Universal MPFI Main Harness
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£1,943.99£1,853.99 inc VAT£1,544.99 ex VAT -
Holley EFI 550-1611
Holley EFI Terminator X Max GM Gen V LT Direct Injection Kit - Late
Not recommended for 4x4 applications with electronic transfer...
Part TypeFuel Injection System£3,221.99£3,059.99 inc VAT£2,549.99 ex VAT -
Holley EFI 550-1631
Holley Terminator X for GEN V LT Engines - Late DI
Not recommended for 4x4 applications with electronic transfer...
Part TypeFuel Injection System£3,478.00£3,290.99 inc VAT£2,742.49 ex VAT -
Holley EFI 550-1621
Holley Terminator X Max Kit - GEN V LT Late
ECU is not recommended for marine applications, but...
Part TypeFuel Injection System£3,221.99£3,059.99 inc VAT£2,549.99 ex VAT -
Holley EFI 550-1610
Holley EFI Terminator X Max GM Gen V LT Direct Injection Kit - Early
Not recommended for 4x4 applications with electronic transfer...
Part TypeFuel Injection System£3,221.99£3,059.99 inc VAT£2,549.99 ex VAT -
Holley EFI 550-1620lsd
Holley EFI Terminator X Max GM Gen V LT Direct Injection Kit - Early
ECU is not recommended for marine applications, but...
Part TypeFuel Injection System£3,221.99£3,059.99 inc VAT£2,549.99 ex VAT -
Holley EFI 550-1630
Holley Terminator X Max for GEN V LT Engines - Early DI
Not recommended for 4x4 applications with electronic transfer...
Part TypeFuel Injection System£3,478.00£3,290.99 inc VAT£2,742.49 ex VAT -
Holley EFI 550-1620
Holley EFI Terminator X Max GM Gen V LT Direct Injection Kit - Early
ECU is not recommended for marine applications, but...
Part TypeFuel Injection System£3,221.99£3,059.99 inc VAT£2,549.99 ex VAT -
Holley EFI 554-153
Holley EFI Terminator X Max Service ECU - Compatible with all Terminator X Harnesses
ECU is not recommended for marine applications, but...
Part TypeEngine Control Module (ECM)£1,298.99 inc VAT£1,082.49 ex VAT -
Holley EFI 550-1431
Holley Terminator X Max Kit - Ford Godzilla
ECU is not recommended for marine applications, but...
Part TypeFuel Injection Conversion Kit£1,789.99£1,693.00 inc VAT£1,410.83 ex VAT -
Holley EFI 543-121
Holley EFI Terminator X MAP Sensor Adapter Set - MAP sensor adapters for different hose diameters.
MAP sensor adapters for different hose diameters.
Part TypeManifold Absolute Pressure Sensor Adapter£25.00 inc VAT£20.83 ex VAT -
Holley EFI 550-1601
Holley EFI Terminator X GM Gen V LT Direct Injection Kit - Late
No Drive-by-Wire or Transmission Control
Part TypeFuel Injection System£2,669.99£2,582.99 inc VAT£2,152.49 ex VAT -
Holley EFI 550-1600
Holley EFI Terminator X GM Gen V LT Direct Injection Kit - Early
No Drive-by-Wire or Transmission Control
Part TypeFuel Injection System£2,669.99£2,582.99 inc VAT£2,152.49 ex VAT -
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 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.



