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AEM (30-3301) V2 5-Gallon Water/Methanol Injection Kit with HD Controller and Internal MAP Sensor

4.5 (4) Write Review
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$619.95

$ 99 .00 $99.00

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  • Boost Dependent HD controller features large adjustment knobs, integrated plug for harness connection, integrated fuse, covered status light and test button for enhanced splash resistance and mounting tabs
  • Wiring harness is terminated with a positive-lock connector on one end with color-coded wires to ease installation, integrated pump ground circuit and additional wire for optional on/off solenoid
  • Heavy-duty high-pressure injection pump features integral fittings, a Santoprene diaphragm and EPDM seals to resist corrosion; pump's quiet, smooth operation is almost undetectable
  • Two precision-machined billet-aluminum injectors with integral check valves include multiple nozzles to cover a wide range of horsepower levels (500cc/min and two 1,000cc/min)
  • 5 gallon tank with anti-slosh technology and high tech conductive low-fluid sensor with positive lock connector 20 feet of Nylon injection tubing included LED dash light for system status and low fluid warning


Water/Methanol injection (WMI) systems reduce air inlet temperatures and enhance combustion efficiency on turbo Diesel applications, which allows an engine to deliver more power with less effort. Water/methanol injection also offers a host of benefits that promote engine longevity, including the reduction of carbon deposits left by a Diesel's exhaust gas recirculation (EGR) system. AEM's Water/Methanol Injection Systems for turbo Diesel trucks and SUVs utilize the most robust hardware combined with more advanced features than any other comparably priced water/methanol injection system. AEM's on-demand, Boost Dependent progressive controller for its Diesel Water/Methanol Injection kit has an on-board MAP sensor (up to 40 PSI) with a molded in nipple for a boost hose pickup to ensure the proper amount of water/methanol injection at all points along the engine's power curve. AEM's engineers spent extensive time developing the HD water/methanol controller's flow control strategy for a more linear flow output delivery. This means that the flow delivery better matches an engine's need for water/methanol injection, which further improves charge air cooling and reduces EGTs. The new HD controller design features large, turn-resistant knobs and larger numbering to easily set accurate start and full activation points, with covered status LED and test buttons for added splash resistance. A plug is integrated into the HD controller housings for mating to the redesigned wiring harness's positive-lock connector. The Boost Dependent HD controller housing has a molded-in, barbed nipple to accept a boost hose (up to 40 PSI) and a wiring legend on the back. AEM's Diesel Water/Methanol system's low-profile 5 gallon tank includes a high-tech conductive low fluid level indicator with a positive lock connector and color matched wires to the wiring harness, and baffles to reduce fluid slosh.


A. Sanchez
Reviewed in the United States on April 21, 2025
This is for the AEM 30-3300, however, it will most likely apply to this one as well since it looks just as cheap. I have had nothing but trouble out of this system. Once I had to clean up over half a gallon of water/methanol from my hatch area. It has leaked at the tank, both, at the sensor, and at the pump feed fitting. The lid to the tank cracked on me as well. Replaced it with an aluminum one. For a while those leaks were under control but then I found more leaks. The filter, which was in the glove box, was leaking, so were the solenoid and the nozzle (which was leaking into my BOV). I have replaced many of the items - solenoid, filter, nozzle, pump head (where lines connect to pump) and added a check valve with Snow Performance parts with much success everywhere except the tank which is leaking again. The controller works and the only reason I have not gotten a tank from Snow Performance is because I like the clear tank as well as level sensor. But, if I were to do it all over again, I certainly would not buy AEM. They should consider replacing those junk fittings (like Snow Performance's) and find a way to improve their leaky tank.
art
Reviewed in the United States on April 7, 2019
Love it , added more power boost , overall turned my motor home to smooth cruiserSame hills 10-15 mph faster ,. When a shot of water goes in. It anills the metal rings valve's cylinders walls all harder and smoother , cuts the wear to nothing ,I'm sure I will get 500 tho out of this Duramax ,been using these water injection system's since the 70tys ,I only use distilled water except when freezing
James Gale
Reviewed in the United States on June 3, 2016
showed up missing a part.... and the supplier wanted me to return the complete unit instead of putting a simple needed part in the mail.... now 3 weeks later I'm still have issues with the way the controller functions and we are trying to work through the problem... when the kit functions, I'm amazed at how well it works and adds to the performance of my diesel pickup
Jacob Kling
Reviewed in the United States on September 2, 2015
Great product every thing works perfectly