The ALTA PWI-2 water/methanol injection system is designed to suppress detonation caused by high intake charge temperatures and or when the effective compression ratio has been taken beyond the auto ignition point (of fuel) by increased boost from a turbo or a supercharger. To suppress Detonation, a fine mist of a mixture of water and methanol is injected into the intake charge. Water, with its high latent heat content, and methanol, with its high octane rating, are extremely effective at controlling the onset of detonation.

From this you can gain power from increasing timing, or leaning the engine out, increasing boost or simply add a large margin of safety to your engine. Think of water/methanol injection like running race fuel all the time without having to pay $8 a gallon! Most clients will see gains in excess of 20WHP once tuned for! All while increasing safety and longevity of the engine.

The ALTA Performance PWI-2 Water Injection System includes everything you need for a professional installation. Simply provide your own bucket of distilled water! (STI, EVO and MINIs all have factory installed reservoirs.) With a dash mounted control and display you can activate or deactivate the system as well as tune the kit on the fly. The PWI-2 brain uses trim pots to adjust flow, and injection start and easy to use wire terminal that allows for a clean easy install. The new PWI-2 system is a perfect balance of price, function, durability and it will not leave you wanting more when it comes time to upgrade.