AEM 30-3304 Water Meth Kit – Key Features & Functions
V2 Progressive Controller with Internal MAP Sensor
Smarter injection control:
- Built-in MAP sensor reads boost directly
- Automatically adjusts injection flow based on boost levels
- Smooth, progressive delivery
No external sensors needed—clean and simple.
AEM’s Boost Dependent water/methanol injection controller is ideal for vehicles running as much as 35 PSI of boost. It has an on-board manifold absolute pressure (MAP) sensor with a molded-in, barbed nipple for a boost hose pickup.
Complete Injection System Kit
Everything included:
- High-pressure pump
- Injection nozzle(s)
- Lines, fittings, and hardware
- Controller and wiring
No piecing together parts—this is ready to install.
The 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.
Boost-Based Injection Control
Precision performance:
- Starts injection at set boost level
- Increases flow as boost rises
- Maintains optimal air/fuel conditions
Because on/off systems are outdated—and rough.
A plug is integrated into the controller housing for mating to the redesigned wiring harness’s positive-lock connector. The Boost Dependent controller housing features a wiring legend at the back, easy to get entry to integrated fuse and molded mounting tabs.
Reduces Intake Air Temperatures
Key performance benefit:
- Lowers charge air temps
- Improves combustion efficiency
- Helps maintain consistent power
Cooler air = denser air = better performance.
AEM’s engineers spent extensive time developing the controller’s go with the flow keep an eye on strategy for a more linear go with the flow output delivery. Which means the go with the flow delivery better matches an engine’s need for water/methanol injection, which further optimizes charge air cooling and detonation keep an eye on on gasoline engines or EGT reduction on turbo Diesels.
Supports Higher Boost Levels
Unlock your setup:
- Reduces knock risk
- Allows more aggressive tuning
- Improves reliability under load
Because heat is what limits your power.
AEM’s Water/Methanol Injection wiring harness for the Boost Dependent 35 PSI controller is terminated with a positive-lock connector on one end and has color-coded wires to ease installation.
Durable AEM Engineering
Built for real-world use:
- High-quality components
- Proven reliability
- Designed for performance applications
Because failure under boost isn’t an option.
Both the power and ground wires for the pump are included in the harness which simplifies the wiring process and removes any chance of the pump by chance activating from a short in the system. An additional wire is included for adding an optional on/off solenoid to stop fluid go with the flow when the system is inactive.
Why You Need This AEM 30-3304 Water Meth Kit
If you’re running forced induction and want to push your setup safely, this is a must-have.
The AEM 30-3304 V2 Kit gives you:
- Automatic boost-based injection control
- Lower intake temps and improved efficiency
- Knock suppression for safer tuning
- Ability to run more boost without sacrificing reliability
Because power without control doesn’t last.
Legal in California only for racing vehicles which may never be used upon a highway
AEM strongly recommends that users never exceed a 50 percent methanol concentration when the use of any AEM Water Methanol system or component
Methanol is a toxic and highly flammable chemical; 100 percent Methanol ignites easily and burns vigorously with an almost undetectable flame
Ideal Applications
- Turbocharged builds
- Supercharged setups
- High-performance street cars
- Track and race builds
- Moderate to high boost applications
Final Verdict
The AEM 30-3304 V2 Water/Meth Injection Kit is one of the most effective upgrades for improving performance and engine safety in boosted applications.
It’s smart, reliable, and gives you the control needed to push your build further—without risking it.
Because controlling heat is how you unlock real power.





There are no reviews yet.