Universal Decoke/Anti Gumming kit (NA)
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Universal Decoke/Anti Gumming kit (NA)


Pay £/mo. at 0.00% APR.

18+, T&C apply, Credit subject to status.


Universal Decoke/Anti Gumming kit (NA)

This kit is designed for all petrol or diesel normally aspirated vehicles, looking to decoke or stop gumming of their engine internals, It works by spraying an extremely fine mist of water (or water/meth mix) direct into the intake manifold at a pre-selected boost pressure or in the case of naturally aspirated engines, a pre-selected RPM.

Water does not cause any problems to your engine. It actually "steam" cleans the inside of your throttle body, intake, heads, valves, and exhaust, worried water will damaged your engine, well here's an interesting fact: on a rainy day, 1Kg of air at 25C contains about 33ml of water. A typical 2 litre turbo engine consumes over 200cc of water per minute at 6000rpm on a rainy day at 1 bar boost. That's not far off the quantities water injection normally operates at.

The very latest cars that suffer from this new type of engine fouling caused by direct injection in petrol engines and diesel fouling in both turbo and non-turbo engines.

Indications that the cleaning may be required are any or a combination of the following....


  • Smoky exhaust
  • Increased fuel consumption
  • Check engine warning lights
  • Poor performance
  • Poor engine response
  • Limp home mode
  • Failed MOT emissions checks.

    Despite what the manufacturers tell you, modern cars are causing some very serious problems with emissions control and with engine breathers blowing the oily crankcase fumes into the intake instead of to atmosphere as in the older cars, and with direct injection not passing fuel vapour over the intakes to keep everything clean, the inlet valves are fouling up causing hesitation and poor low speed running. This is known in the trade as "sponging" where the coke on the back face of the inlet valve, absorbs the flow of air, restricting its smooth flow into the cylinder.

    Diesels are even worse with serious fouling of the intake manifolds with diesel and puddling engine oil and it’s becoming very common now for catastrophic engine failures if the diesel car is not run regularly at high speed to "clear it out" and regenerate the particulate filter, and should be considered a regular service maintenance procedure. In fact, a certain mainstream manufacturer has withdrawn its diesel cars from sale in the UK Channel Islands because with no big roads to drive quickly on, engines have been failing as low as 7000m from new and are now considered "unfit for purpose!!!".

    Search the "net" for Vauxhall EGR valve problems, BMW swirl flap issues and turbo failures and Fiat diesel engine blow-ups, VW direct injection faults etc etc and you will see the need for this handy system.

    This product can remove soot, carbon and oily build-up on:


  • Turbochargers, including the O2 Sensor and the catalytic converter
  • Exhaust Gas Recirculation (EGR) Valves
  • Engine Valves
  • Intercoolers
  • Turbocharger variable geometry vanes and nozzles
  • Throttle housings

    The system can eliminate the need for major engine overhaul and cleaning.


  • Helps solve and prevent reduced power / poor pickup / failed emissions / low fuel economy / smoking exhaust / costly repairs
  • Recommended preventative maintenance for turbo diesel vehicles
  • Removes soot and carbon build up, eco friendly

    This kit utilizes a progressive controller which can read from any 0-5v sensor, I.e MAFF, AFM, EGT, MAP sensors for activation, The controller has a start knob and a full flow knob so you can set the kit @15% flow and ramp it up to 100% flow.

    Many people ask 'Does the kit come with a tank', No, the simple reason for this is 90% of people just use the cars std windscreen washer bottle, injecting screen wash is fine as most contain 50% methanol (just stay away from glycol, Check screen wash data sheet).

    Although we can supply various different size tanks + other optional extras such as on/off toggle switches, Charge + EGT gauges, Self-sealing float switch which can be connected to the progressive controller or LED for a low level warning light.

    This kit will fit any NA petrol or diesel engine etc.

    Kit Contents:

  • 300psi Pump with EPDM seals
  • Allen key can be used to adjust water pump pressure
  • Progressive Controller
  • 15' of High Pressure Black Tubing
  • Injector (please supply engine cc & max boost + rpm so we can supply appropriate sizes).
  • Nozzle Holder
  • Heavy duty Nickel plated Check Valve
  • filtered self-sealing tank tap
  • All fittings needed for installation
  • Inline Fuse Holder with 10 amp fuse
  • Zip ties and wire splices and connectors
  • Install Instructions with stickers.


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Please allow up to 1 working day to process your order. Orders received before midday (UK Time) Monday to Friday will normally be despatched the same day. Orders received after midday or at weekends will be dispatched the next working day.

Should you have any problem with your purchase please contact us either by Instagram, Facebook or by using the Contact Form on the website, and we will arrange with you a method of redress suitable to your situation.

All Warranties lie with the manufacturer. Terms and conditions apply.

Warranty and Returns 1. Length of Warranty The warranty term for new alcohol/water injection systems purchased from Devilsown Injection is one (1) years beginning on the date of the invoice for the original purchaser, as further described below. Pumps, Pressure Switches, Solenoids, Fittings, and all other parts and upgrades sold separately from the alcohol/water injection systems carry a ninety (90) day term as described. Refunds will be issued within 48hrs of the faulty item being returned should a replacement not be required/desired, replacement items will be sent on the same delivery service as the original ordered item.

2. What is Covered Devilsown Injection warrants the original purchaser that only the products it sells are free from defects in materials and workmanship. This warranty also covers damage due to the shipping of products to you. This warranty does not cover damage due to external causes, including accident, abuse, misuse, acts of third parties, servicing not authorized by Devilsown Injection, Product modification or repairs (this includes products disassembled), usage not in accordance with instructions accompanying the product(s), failure to perform required preventive maintenance, including but not limited to cleaning filters, and problems caused by use of parts and components not supplied by Devilsown Injection. Devilsown Injection and Methanol Injection UK are not liable for any time or costs incurred if faulty items are not fitted by our own workshop. This includes any return postage costs. Items returned with damaged or missing warranty labels are not covered by our warranty.

3.Return Policy Devilsown Injection will not accept any returns after thirty (30) days beginning on the date of the invoice unless pre-approved. For a return RMA you must contact Devilsown for approval. The item must be un-installed in the original box, in new, unused condition. You must have your original receipt and must contact us within 14 days of receiving your item. After 14 days All opened or unpackaged returns are subject to a fifteen (15) percent re-stocking including the original shipping charge (excluding faulty items). You are responsible for shipping the item to us at your expense. PayPal has revised its “Refund” policy from 16th March, 2020. If you cancelled your order for “NO REASONS” or “INCORRECT CHOICES” (wrong product type etc.), or “INCORRECT SHIPPING ADDRESS” you will not be able to get the full amount refund. Unless there are defective product issues. In this case, order cancelled, “ the PayPal handling fee will not be refunded”. Please be double check your order before completion.

4. Shipping Damage & Discrepancies If you receive your order with incorrect or missing components, you must notify Devilsown Injection in the manner described above within 72hrs of receipt. In the event of shipping damage, you must also notify Devilsown Injection in the manner described above, Photo evidence may be required to process the claim with the courier along with possibly the item to be returned to Devilsown. Small uk orders are shipped on a 24hr service, larger items on a 48hr service

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