Water injection kit
Water injection kit for sale on Ireland's largest auction and classifieds sites
Aem water methanol - water, / - £520.00
Combined integral highly • Accurate conductive low • Fluid switch tank - Free postage - New and Used
Combined integral highly • Accurate conductive low • Fluid switch tank - Free postage - New and Used
Snow performance boost - performance, cooler - £405.69
Race gas quality • Increase your pump • Octane points make - Free postage - New and Used
Race gas quality • Increase your pump • Octane points make - Free postage - New and Used
Snow performance boost cooler - snow, - £324.39
Race gas quality • Increase your pump • Octane points make - Free postage - New and Used
Race gas quality • Increase your pump • Octane points make - Free postage - New and Used
Genuine aem water meth - genuine, - £471.38
Conductive low fluid • Combined integral highly • Switch tank boost - Free postage - New and Used
Conductive low fluid • Combined integral highly • Switch tank boost - Free postage - New and Used
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Aem water methanol - v3, - £519.95
- Free postage - New and Used
- Free postage - New and Used
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48 listings · from £92.95 · avg £399.84
⚠️ These listings were last updated more than 9 days ago.
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Browse 48 water injection kit listings currently in our index. Prices range from £92.95 to £745.99, with an average of £399.84. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about water injection kit →
Aem gallon water meth - gallon, - £579.99
Combined integral highly • Accurate conductive low • Fluid switch tank - Free postage - New and Used
Combined integral highly • Accurate conductive low • Fluid switch tank - Free postage - New and Used
Coolingmist volute injection - coolingmist, - £189.99
Either progressive non • Flow stainless steel • Hoses are provided - Free postage - New and Used
Either progressive non • Flow stainless steel • Hoses are provided - Free postage - New and Used
Genuine water meth - genuine, v3 - £424.02
This allows racers • Reliably increase boost • Advance ignition timing - Free postage - New and Used
This allows racers • Reliably increase boost • Advance ignition timing - Free postage - New and Used
Devils water methanol - devils, - £364.99
This kit only • Uses highest quality • Parts these kits - Free postage - New and Used
This kit only • Uses highest quality • Parts these kits - Free postage - New and Used
Devilsown port direct - 4, - £299.95
Direct port setup • Why would you • Get all fittings - Free postage - New and Used
Direct port setup • Why would you • Get all fittings - Free postage - New and Used
Aem water methanol - aem, - £519.95
Three resized injector • Nozzles are kit • Allow improved flow - Free postage - New and Used
Three resized injector • Nozzles are kit • Allow improved flow - Free postage - New and Used
Water methanol injection kit - water, - £363.70
Water methanol injection • Kit 200psi motor • Bought originally lancer - Free postage - New and Used
Water methanol injection • Kit 200psi motor • Bought originally lancer - Free postage - New and Used
Devilsown focus port direct - focus, - £504.99
Eliminate carbon build • Direct injection engines • Backside intake valves - Free postage - New and Used
Eliminate carbon build • Direct injection engines • Backside intake valves - Free postage - New and Used
Devilsown m57 port direct - 6, - £599.99
Bmw inline six • Cylinder manifolds are • Particularly prone distribution - Free postage - New and Used
Bmw inline six • Cylinder manifolds are • Particularly prone distribution - Free postage - New and Used
Devilsown port direct - devilsown, - £204.99
Direct port setup • Why would you • Get all fittings - Free postage - New and Used
Direct port setup • Why would you • Get all fittings - Free postage - New and Used
Genuine aem water methanol - genuine, - £92.95
Aem wmi injector • Unique swirl generator • Technology that improves - Free postage - New and Used
Aem wmi injector • Unique swirl generator • Technology that improves - Free postage - New and Used
Devilsown port direct - devilsown, - £284.99
Direct port setup • Why would you • Get all fittings - Free postage - New and Used
Direct port setup • Why would you • Get all fittings - Free postage - New and Used
Aem electronics water methanol - aem, water/methanol - £700.75
When combined integral • Highly accurate conductive • Low fluid switch - Free postage - New and Used
When combined integral • Highly accurate conductive • Low fluid switch - Free postage - New and Used
Devilsown port direct - devilsown, 8 - £289.99
Direct port setup • Why would you • Get all fittings - Free postage - New and Used
Direct port setup • Why would you • Get all fittings - Free postage - New and Used
Port direct injection kit - 4, - £209.99
Help make installation • Easier pre flare • One end stainless - Free postage - New and Used
Help make installation • Easier pre flare • One end stainless - Free postage - New and Used
Devilsown mini cooper r53 - mini, - £359.99
Mini r53 inlet • Manifold used eliminate • Carbon build direct - Free postage - New and Used
Mini r53 inlet • Manifold used eliminate • Carbon build direct - Free postage - New and Used
Genuine water meth - genuine, water/meth - £424.02
This allows racers • Reliably increase boost • Advance ignition timing - Free postage - New and Used
This allows racers • Reliably increase boost • Advance ignition timing - Free postage - New and Used
Coolingmist tuner kit water - coolingmist, - £329.99
When combined introduced • Into inlet stream • They can effectively - Free postage - New and Used
When combined introduced • Into inlet stream • They can effectively - Free postage - New and Used
Coolingmist volute injection - coolingmist, - £194.99
Either progressive non • Flow stainless steel • Hoses are provided - Free postage - New and Used
Either progressive non • Flow stainless steel • Hoses are provided - Free postage - New and Used
Devilsown port direct - port, - £524.95
Direct port setup • Why would you • Get all fittings - Free postage - New and Used
Direct port setup • Why would you • Get all fittings - Free postage - New and Used
Devilsown mini cooper r56 - devilsown, - £369.99
Mini r56 inlet • Manifold used eliminate • Carbon build direct - Free postage - New and Used
Mini r56 inlet • Manifold used eliminate • Carbon build direct - Free postage - New and Used
Devilsown ford fiesta port - ford, st - £439.99
Eliminate carbon build • Direct injection engines • Backside intake valves - Free postage - New and Used
Eliminate carbon build • Direct injection engines • Backside intake valves - Free postage - New and Used
Port direct injection kit - port, - £274.99
Help make installation • Easier pre flare • One end stainless - Free postage - New and Used
Help make installation • Easier pre flare • One end stainless - Free postage - New and Used
Vaitrix sensor type gauge - type, mi - £510.00
Also can used • Piggyback ecu remapping • High quality power - Free postage - New and Used
Also can used • Piggyback ecu remapping • High quality power - Free postage - New and Used
Snow performance boost cooler - snow, - £405.69
Race gas quality • Increase your pump • Octane points make - Free postage - New and Used
Race gas quality • Increase your pump • Octane points make - Free postage - New and Used
Vaitrix bar mi gauge - .vaitrix, - £510.00
Water injection • This more affordable • Gauge 7100150t bar - Free postage - New and Used
Water injection • This more affordable • Gauge 7100150t bar - Free postage - New and Used
Vaitrix sensor type gauge - type, mi - £510.00
Also can used • Piggyback ecu remapping • High quality power - Free postage - New and Used
Also can used • Piggyback ecu remapping • High quality power - Free postage - New and Used
Port direct injection - injection, kit - £369.95
Help make installation • Easier pre flare • One end stainless - Free postage - New and Used
Help make installation • Easier pre flare • One end stainless - Free postage - New and Used
Genuine aem 3300 - aem, 30-3300 - £495.28
Item inside brand • New unused please • Note that original - Free postage - New and Used
Item inside brand • New unused please • Note that original - Free postage - New and Used
Devilsown port direct - 4, - £139.99
Direct port setup • Why would you • Get all fittings - Free postage - New and Used
Direct port setup • Why would you • Get all fittings - Free postage - New and Used
Devilsown mazda mps 3 - mazda, - £369.99
Eliminate carbon build • Direct injection engines • Backside intake valves - Free postage - New and Used
Eliminate carbon build • Direct injection engines • Backside intake valves - Free postage - New and Used
Coolingmist port direct - coolingmist, - £339.95
Direct port setup • Why would you • Will want install - Free postage - New and Used
Direct port setup • Why would you • Will want install - Free postage - New and Used
Coolingmist hardline port - 4, - £339.95
Shapable bendable tubing • Hardline direct port • Upgrade gives all - Free postage - New and Used
Shapable bendable tubing • Hardline direct port • Upgrade gives all - Free postage - New and Used
Devils water methanol - devils, - £430.99
This kit only • Uses highest quality • Parts these kits - Free postage - New and Used
This kit only • Uses highest quality • Parts these kits - Free postage - New and Used
Aem gallon water meth - water, - £559.99
One gallon tank • Single injector suitable • Forced induction petrol - Free postage - New and Used
One gallon tank • Single injector suitable • Forced induction petrol - Free postage - New and Used
Devilsown water methanol - water, - £745.99
This kit only • Uses highest quality • Parts these kits - Free postage - New and Used
This kit only • Uses highest quality • Parts these kits - Free postage - New and Used
Coolingmist stage water - 1, - £394.99
When combined introduced • Into inlet stream • They can effectively - Free postage - New and Used
When combined introduced • Into inlet stream • They can effectively - Free postage - New and Used
Coolingmist port direct - coolingmist, - £179.99
Direct port setup • Why would you • Will want install - Free postage - New and Used
Direct port setup • Why would you • Will want install - Free postage - New and Used
Coolingmist n55 port - n55, 6 - £569.95
Bmw n55 inline • Six cylinder manifolds • Are particularly prone - Free postage - New and Used
Bmw n55 inline • Six cylinder manifolds • Are particularly prone - Free postage - New and Used
Aem gallon water - gallon, meth - £569.25
250cc wmi nozzle • Injector against 500cc • Would improve cooling - Free postage - New and Used
250cc wmi nozzle • Injector against 500cc • Would improve cooling - Free postage - New and Used
Aem electronics water methanol - electronics, water/methanol - £100.19
250cc wmi nozzle • Achieved equivalent cooling • Temperatures but 6.5 - Free postage - New and Used
250cc wmi nozzle • Achieved equivalent cooling • Temperatures but 6.5 - Free postage - New and Used
Vaitrix sensor type gauge - sensor, mi - £510.00
Also can used • Piggyback ecu remapping • High quality power - Free postage - New and Used
Also can used • Piggyback ecu remapping • High quality power - Free postage - New and Used
Snow performance sno 301 - snow, sno-301 - £348.78
Manufacturer snow performance • Car tuning gaining • Great popularity our - Free postage - New and Used
Manufacturer snow performance • Car tuning gaining • Great popularity our - Free postage - New and Used
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Everything you need to know about water injection kit
Whether you are looking for a brand-new or second-hand water injection kit, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £92.95, while premium listings can reach £745.99 — giving you a wide budget spread to work with. The average price of £399.84 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.