AEM · New
AEM V2 5 Gallon Diesel Water/Methanol Injection Kit - Multi Input
MPN 30-3351 · Store SKU aem30-3351
Supplier stock checked 11/7/2026, 5:46:42 PM UTC. Adding a part does not reserve it.
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Product details
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. Note: FOR OPTIMUM RESULTS, ALL WATER/METHANOL INJECTION SYSTEMS AND FLOW GAUGES SHOULD BE RUN WITH AN WMI INLINE FILTER (PN 30-3003). For additional insurance against unintended flow, particularly when the pump and tank must be installed higher than the injections nozzle, we recommend adding our optional High-Flow Low-Current WMI Solenoid (PN 30-3326). The second controller (Kit PN 30-3350, Kit PN 30-3351 (5 gallon and two injectors)) features a multiple input design that enables users to install AEM's Water/Methanol Injection Kit on ultra-high boost vehicles (above 35 PSI) using a 0-5v voltage-based external MAP sensor. 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. V2 Water/Methanol Injection Kit, Multi Input Controller - 0-5v/MAF Frequency or Voltage/Duty Cycle/Ext MAP, 200psi WM Pump, 5 Gallon Reservoir, Conductive Fluid Level Sensor AEM offers two different water/methanol controller designs for gas vehicles: Water/Methanol for All Boost Levels of Forced Induction Gas Race Engines 0-5v/MAF Frequency or Voltage/Duty Cycle/Ext MAP, 5 Gallon THE AEM WATER/METHANOL INJECTION SYSTEM ADVANTAGE AEM V3 Water Methanol Injection Kit
Manufacturer fitment & guides
Check 30-3351 against the manufacturer’s application information below.
Part-specific notes
- Not CARB approved. Destination and intended-use restrictions must be checked before sale.
- Emissions acknowledgement required before purchase.
- California Proposition 65: Y
