THE AEM WATER/METHANOL INJECTION SYSTEM ADVANTAGE Water/methanol injection for forced induction (turbocharged or supercharged) gas-powered race engines is a proven means for effectively reducing engine inlet air temperatures and suppressing harmful detonation. This allows racers to reliably increase boost and advance ignition timing-without using high-octane racing fuel-for power gains of up to 20%. AEM's Water Injection Kits utilize robust hardware and deliver more advanced features than any other comparably priced water/methanol injection system. Water/Methanol for All Boost Levels of Forced Induction Gas Race Engines AEM offers two different water/methanol controller designs for gas vehicles: One is boost dependent for forced induction vehicles up to 35 PSI of boost (kit PN 30-3300). The Boost Dependent controller has an on-board manifold absolute pressure (MAP) sensor with a molded-in nipple for a boost hose pickup. The second controller (Kit PN 30-3350) features a multiple input design.