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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 550-1061
TERMX STEALTH 4150 4 INJ LS 58X BLACK - Holley EFI Terminator X Stealth GM LS 4150 - Black
58X Crank - 4 Injectors - 650 HP
Part TypeFuel Injection System£2,352.98£2,253.98 inc VAT£1,878.32 ex VAT -
Holley EFI 550-1021
Holley EFI Terminator X Stealth Kit - 4150 Flange - GM 24X
24X Crank - 4 Injectors - 650 HP
Part TypeFuel Injection System£2,352.98£2,253.98 inc VAT£1,878.32 ex VAT -
Holley EFI 534-296
Holley EFI Terminator X Stealth 4150 Throttle Body - Black - 8 fuel injectors
Verify your kickdown provisions for complete installation.
Part TypeFuel Injection Throttle Body£2,048.99 inc VAT£1,707.49 ex VAT -
Holley EFI 534-294
Holley EFI Terminator X Stealth 4150 Throttle Body - Classic Gold - 4 fuel injectors
Verify your kickdown provisions for complete installation.
Part TypeFuel Injection Throttle Body£1,699.00 inc VAT£1,415.83 ex VAT -
Holley EFI 534-293
TERMX STEALTH 4150 4INJ BLACK - Holley EFI Terminator X Stealth 4150 Throttle Body - Black
Verify your kickdown provisions for complete installation.
Part TypeFuel Injection Throttle Body£1,699.00 inc VAT£1,415.83 ex VAT -
Holley EFI 534-308
Holley EFI Terminator X Stealth 4150 Air Valve - Black - Compatible w/ MPFI Intake Manifolds
Verify your kickdown provisions for complete installation.
Part TypeFuel Injection Throttle Body£1,153.00£1,058.99 inc VAT£882.49 ex VAT -
Holley EFI 558-463
Holley EFI Terminator X Wideband Adapter Harness - Compatible w/ Terminator X and X Max ECU's
Do not use with HP, Dominator, or Sniper...
Part TypeMulti-Purpose Wire Connector£76.00 inc VAT£63.33 ex VAT -
Holley EFI 555-101
Holley EFI Active Speed Management - V3 Terminator X - Drag Race Traction Control for Terminator X
For Racing Use ONLY that has a defined...
Part TypeSoftware License£602.99£589.99 inc VAT£491.66 ex VAT -
Holley EFI 550-1071
TERMINATOR X STEALTH 4500 8 INJ BLACK - Holley EFI Terminator X Stealth 4500 - Black
8 Injectors - 800-1500 HP
Part TypeFuel Injection System£2,986.99£2,864.99 inc VAT£2,387.49 ex VAT -
Holley EFI 550-1005
Holley EFI Terminator X Stealth 4150 - Black - 8 Injectors
8 Injectors - supports up to 1250hp (Forced...
Part TypeFuel Injection System£2,567.99£2,488.99 inc VAT£2,074.16 ex VAT -
Holley EFI 550-1002
Holley EFI Terminator X Stealth 4150
Part # 34-42 is required for a bolt-on...
Part TypeFuel Injection System£2,045.99£1,972.00 inc VAT£1,643.33 ex VAT -
Holley EFI 534-307
Holley EFI Terminator X Stealth 4150 Air Valve - Polished - Compatible w/ MPFI Intake Manifolds
Verify your kickdown provisions for complete installation.
Part TypeFuel Injection Throttle Body£1,153.00£1,058.99 inc VAT£882.49 ex VAT -
Holley EFI 534-309
Holley EFI Terminator X Stealth 4150 Air Valve - Gold - Compatible w/ MPFI Intake Manifolds
Verify your kickdown provisions for complete installation.
Part TypeFuel Injection Throttle Body£1,153.00£583.00 inc VAT£485.83 ex VAT -
Holley EFI 534-298
Holley EFI Terminator X Stealth 4150 Secondary Throttle Body - Shiny - 4 fuel injectors
Verify your kickdown provisions for complete installation.
Part TypeFuel Injection Throttle Body£1,153.00£1,058.99 inc VAT£882.49 ex VAT -
Holley EFI 534-300
Holley EFI Terminator X Stealth 4150 Secondary Throttle Body - Gold - 4 fuel injectors
Verify your kickdown provisions for complete installation.
Part TypeFuel Injection Throttle Body£1,153.00£1,058.99 inc VAT£882.49 ex VAT -
Holley EFI 550-1074
TERMINATOR X STEALTH 4150 2X4 SHINY - Holley EFI Terminator X Stealth 4150 2x4 - Shiny
8 Injectors - 800-1500 HP
Part TypeFuel Injection Conversion Kit£3,221.99£3,098.99 inc VAT£2,582.49 ex VAT -
Holley EFI 550-1215
Holley EFI Terminator X - 2015.5-2017 Ford Coyote w/ Ti-VCT
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£3,089.99£2,957.99 inc VAT£2,464.99 ex VAT -
Holley EFI 550-1214
Holley EFI Terminator X - 2015.5-2017 Ford Coyote w/ Ti-VCT
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£3,089.99£2,957.99 inc VAT£2,464.99 ex VAT -
Holley EFI 550-910
Holley EFI Terminator X - Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3 - 58x Crank
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£1,534.99£1,502.99 inc VAT£1,252.49 ex VAT -
Holley EFI 550-905
Holley EFI Terminator X - Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3 - 58x Crank
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£1,534.99£1,502.99 inc VAT£1,252.49 ex VAT -
Holley EFI 550-1225
Holley EFI Terminator X - 2007-2013+ HEMI Gen III Kit
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 550-1224
Holley EFI Terminator X - 2007-2013+ HEMI Gen III Kit
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 550-1223
Holley EFI Terminator X - 2003-2006 HEMI Gen III Kit
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 550-904
Holley Terminator X ECU Kit - Early GM Truck - 24X
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£1,534.99£1,502.99 inc VAT£1,252.49 ex VAT -
Holley EFI 550-1213
Holley EFI Terminator X - 2013-2015 Ford Coyote w/ Ti-VCT
Terminator X ECU's are designed to be mounted...
Part TypeFuel Injection System£3,089.99£2,957.99 inc VAT£2,464.99 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.



