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Demon Tweeks Vehicle Performance Additives

32 products available · Updated July 2026

Parent: Vehicle Fluids

All (167,334)Vehicle Motor Oil (86)Vehicle Performance Additives (32)Gear Oil (20)Vehicle Engine Degreasers (20)Vehicle Hydraulic Clutch Fluid (15)Vehicle Screen Wash (12)Vehicle Brake Fluid (11)Vehicle Transmission Fluid (10)Vehicle Fuel System Cleaners (7)Vehicle Antifreeze (4)Vehicle Power Steering Fluid (3)Vehicle Cooling System Additives (1)

Showing 1–24 of 32 products

LIQUI MOLY Octane Booster in a silver can with a blue cap and spout, featuring bold orange and black graphics, labeled as a performance petrol fuel additive treatment, 200ml.

Liqui Moly

Liqui Moly Octane Booster Fuel Additive

£18.33

Fuelab Fuelab 81831-1 818 Series in-Line Fuel Filter with 3 Element

Fuelab

Fuelab High Flow In-Line Fuel Filter (818xx Series) - 6 Micron Element -6 JIC In Black

£215.48

Fuelab

Fuelab High Flow In-Line Fuel Filter (818xx Series) - 10 Micron Element -6 JIC In Black

£160.71

Liqui Moly Liqui Moly 3722 Speed Tec Diesel 250ml

Liqui Moly

Liqui Moly Speed Tec Diesel Fuel Additive

£21.21

Black plastic bottle with a long neck, labeled "CVL Turbo" in bold white and red text, featuring hazard symbols and detailing for Millers Oils' High Octane Booster, 500ml.

Millers Oils

Millers Oils CVL Extra Octane Booster - 500ml

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K&N Filters Performance Replacement Element - 1

K&N Filters

K&N Filters Performance Replacement Element - 1

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LIQUI MOLY 21281 Pro-Line Direct Injection Cleaner in a 120ml metal container with a blue cap, featuring detailed text on engine cleaning and LSPI risk reduction.

Liqui Moly

Liqui Moly Pro-Line Direct Injection Cleaner

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Liqui Moly

Liqui Moly Motorcycle Performance Set

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Black in-line fuel filter with 6AN in and out fittings, 6-micron fiberglass element, and integrated check valve, featuring a silver mounting bracket.

Fuelab

Fuelab High Flow In-Line Fuel Filter (848xx Series) - With Integrated Check Valve - 6 Inlet/Outlet 6 Micron Fibreglass Element Black

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K&N Filters Performance Replacement Element - Set Of 2

K&N Filters

K&N Filters Performance Replacement Element - Set Of 2

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K&N Filters Performance Replacement Element - Unique Panel - LxWxH - 225x189x40mm

K&N Filters

K&N Filters Performance Replacement Element - Unique Panel - LxWxH - 225x189x40mm

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Round black foam air filter element measuring 139x82mm, packaged in a sleek black and silver box with "Pipercross Performance Air Filters" branding and a car graphic.

Pipercross

Pipercross Performance Replacement Element - Round Panel 139x82mm

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Akrapovic Underseat & Model Specific Silencer - Titanium Sleeve - Road Legal - Titanium Sleeve

Akrapovic

Akrapovic Underseat & Model Specific Silencer - Titanium Sleeve - Road Legal - Titanium Sleeve

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Clear bottle of Motorex 250 Mldot 4 Brake Fluid, 250 ml, featuring a purple and green label with bold text and an illustration of a brake system component.

MOTOREX

Motorex Brake Fluid - DOT4

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Green and silver 1-liter bottle of Motorex 308244 Formula 2T oil, featuring a textured grip, a flexible spout, and a label with bold text and an image of a motorcycle.

MOTOREX

Motorex Formula Semi Synthetic 2-Stroke Oil - 1 Litre

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K&N Filters Performance Replacement Element - Unique Panel - LxWxH - 254x162x40mm

K&N Filters

K&N Filters Performance Replacement Element - Unique Panel - LxWxH - 254x162x40mm

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K&N Filters Performance Replacement Element - Unique Panel - LxWxH - 225x219x25mm

K&N Filters

K&N Filters Performance Replacement Element - Unique Panel - LxWxH - 225x219x25mm

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Carbon Collective Rapide Quick Detailer

Carbon Collective

Carbon Collective Rapide Quick Detailer

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K&N Filters Performance Replacement Element - Unique Panel - LxWxH - 300x275x25mm

K&N Filters

K&N Filters Performance Replacement Element - Unique Panel - LxWxH - 300x275x25mm

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Carbon Collective Speed Applicator

Carbon Collective

Carbon Collective Speed Applicator

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K&N Filters Performance Replacement Element - 2 x Unique Panels - LxWxH - 248x210x29mm

K&N Filters

K&N Filters Performance Replacement Element - 2 x Unique Panels - LxWxH - 248x210x29mm

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Turbosmart Type S Supersonic BOV Controller Kit featuring a silver aluminum valve, black top, various hoses, fittings, and electrical components in a neatly arranged layout.

Turbosmart

Turbosmart Diesel Blow Off Valve Controller and Solenoid Kit - Type 5 Supersonic

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Akrapovic Underseat & Model Specific Silencer - Carbon Sleeve / Carbon Outlet - Road Legal - Carbon Sleeve

Akrapovic

Akrapovic Underseat & Model Specific Silencer - Carbon Sleeve / Carbon Outlet - Road Legal - Carbon Sleeve

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Black tube of Liqui Moly MOS2 Shooter with a white nozzle, featuring bold red and blue text, designed for reducing friction in engines and machinery.

Liqui Moly

Liqui Moly MOS2 Shooter

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