As low as 0% APR - Buy Now, Pay Later!
On orders over $200
100% Money Back on Select Parts
AEM Water / Methanol Injection Kit V2 (up to 35psi) w/out Tank ( Part Number:AEM 30-3302)

AEM Water / Methanol Injection Kit V2 (up to 35psi) w/out Tank - Universal

MODEL # AEM 30-3302
Manufacturer Part # 30-3302


MSRP: $566.60

Only 2 left!
Qualifies for free shipping!


Water/methanol injection for gas engines is a proven means for effectively reducing engine inlet air temperatures and suppressing harmful detonation on forced induction and high performance naturally aspirated race engines. 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/Methanol Injection Systems utilize the most robust hardware combined with more advanced features than any other comparably priced water/methanol system.

The on-demand progressive controller in AEM’s Boost Dependent Water/Methanol Injection kit bases injection flow on manifold pressure using an on-board MAP sensor (up to 35 PSI of boost) to ensure the proper amount of water/methanol injection at all points along an engine’s power curve.

AEM’s engineers spent extensive time developing the 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 optimizes charge air cooling and detonation control.

The new 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 controller housing for mating to the redesigned wiring harness’s positive-lock connector. The Boost Dependent controller housing has a molded-in, barbed nipple to accept a boost hose and a wiring legend on the back, integrated fuse and molded mounting tabs.

AEM’s Boost Dependent Water/Methanol Injection kit’s wiring harness is terminated with a positive-lock connector on one end and has color-coded wires to ease installation. Both the power and ground wires for the pump are included in the harness which simplifies the wiring process and eliminates any chance of the pump accidentally activating from a short in the system. An additional wire is included for adding an optional on/off solenoid to stop fluid flow when the system is inactive.

•Boost Dependent controller features on-board MAP sensor with 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, power and ground wires for the pump and additional wire for optional on/off fluid solenoid
•“Boost Safe” failsafe output included
•Internally-bypassed water/methanol injection pump does not cycle on an off and provides quiet, smooth operation. It features robust construction including integral hose fittings, EPDM seals and a Santoprene diaphragm that provides consistent and reliable fluid delivery
•Precision-machined billet-aluminum injector with integral check valve
•Three interchangeable injector nozzles to cover a wide variety of HP levels (250cc/min, 500 cc/min & 1,000cc/min)
•20 feet of Nylon injection tubing included
•LED dash light for system status and low fluid warning
| | | | |


Brand: AEM
Attachment Method: Hardware
Display: Status LED
Requires Control Unit: Yes (Included)
Tank Included: No
Volts: 12v
Nozzles Included: 250cc/min, 500cc/min. 1000cc/min

Mfgr. Warranty: 1 Year
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.


This product has no user uploaded media. You can upload your photo or video of your install by posting a review. Reviews:

  • Q: sti 2010   km4ever 2 years ago


    will this kit work with 2010 subaru sti hatchback

    • A: This is a universal product and could be made to fit but custom wiring and installation is required.

      Brady R 2 years ago
  • Q: Failsafe?  Brodan 3 years ago


    How does the boost Failsafe work in this kit? Would another failsafe be needed?

    • A: The failsafe feature in this kit will send a ground signal through the failsafe wire when it detects a voltage-related error (short, bad connection, broken wire, overheated pump, high or low voltage signal, etc.). That wire can be connected to an ECU or boost solenoid in order to cut boost or put the car in limp mode. An additional failsafe is not necessary, but the AEM water/meth failsafe gauge could be added to the system. The failsafe gauge actively monitors the entire water/methanol fuel injection curve to trigger an alarm event under any defined adverse condition.

      Zach G. 3 years ago
Universal Product
This item is non application specific.
Please verify compatibility before purchase. May require some modification for proper installation.