AEM Water / Methanol Injection Kit w/ 1 Gallon Tank

Part #: AEM 30-3000
MSRP: This Item is no longer available.


Brand: AEM
Attachment Method: Hardware
Display: Status LED
Requires Control Unit: Yes (Included)
Tank Included: Yes
Volts: 12v
Nozzles Included: 130ml/min, 315ml/min. 550ml/min
Mfgr. Warranty: 1 Year
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.


The AEM Water/Methanol Injection System comes loaded with more STANDARD features and high quality components that any other comparably priced injection system on the market today. The AEM injection kit comes with a 1 gallon tank with built-in low level switch. The "Boost Safe" injection readiness system comes standard in all AEM Water/Methanol Injection Systems. An check valve integrated into the nozzle prevents unintended fluid flow is included standard. One injector and three interchangeable nozzles are included to cover a wide range of potential horsepower levels along with 20 feet of injection tubing to facilitate the system being installed on practically any vehicle.

-1 Gallon tank with built in low level switch
-Boost referenced progressive controller
-“Boost Safe” readiness safety system
-Check valve integrated into nozzle to prevent unintended fluid flow
-One injector and three nozzles to cover a wide range of HP levels (130ml/min, 315ml/min, 550ml/min)
-High Pressure 200psi Recirculation-style pump
-Progressive Controller: Start Injection Boost 1-11psi. Full Injection Boost 6-39psi
-LED dash light for system status and low fluid warning
-20 ft. of injection tubing



Verified Purchase
Good Product, great results
nipper_integra40353 3 years ago
Purchased this for my 2006 Subaru WRX STI and was very pleased with the results. Due to poor fuel quality in my area this turned out to be an excellent addition to my car. Solved many knock issues and performed reliably. Would purchase again!
Verified Purchase
the next best thing
tres 4 years ago
this product is the next best thing for any force induction vehicle, installation was a bit technical but the power it adds makes it all worth it! for those planning to get this product kudos to you guys, but for gasoline cars, get this kit and not the one for diesel, it has a different configuration for the controller, just buy the bigger tank so u wont runout of water/meth when driving your car! this thing is awesome for those who dont want to upgrade a turbo yet, or for those who dont want to change to FMIC or a bigger intercooler.thanks Rally sport direct!


  • AnswerQ: tuning  Attia199 3 years ago

    I have an 06 STI and im on stock turbo 17psi running 330whp. The car was tuned by Evans Tuning already. Will adding this kit need retuning or can i run as is?

    • A: You will need to re-tune the car in order for it to work properly.

      Kyle A. 3 years ago

  • AnswerQ: Can you run Alcohol with this kit?  J. Lovett 4 years ago

    Can you run standard 70%+ Rubbing Alcohol with this kit? Also would running a 50/50 Water/Alchy Mix do any damage long term wise to an engine?

    • A: It is not recommended to run 70%+rubbing alcohol with this kit. All AEM water/methanol injection systems and components (pump, lines, fittings, filter, flow sensor, tank, and nozzles) are 100% chemically compatible with methanol. However, for safety reasons they strongly recommend that users never use more than a 50% methanol concentration in their systems. The performance advantages of using greater than 50% methanol concentrations are small, if they exist at all. If properly tuned, running a 50/50 mix has not shown to cause any damage long term wise. :)

      guest561671092a8d25a1658c55d3 4 years ago

  • AnswerQ: tuning  GJScooby 4 years ago

    I was wondering, am I able to just run an accessport after installing this to count as my tune? Or will I still have to have it professionally tuned?

    • A: The Cobb AccessPort does not have a map for a water/meth kit unfortunately so you would have to ensure you had a professional tune on the vehicle.

      Tanner S. 4 years ago

  • AnswerQ: ?  juangaSTI 4 years ago

    can i put this methanol kit on my STI 2011 ?

    • A: This AEM water / methanol kit is universal with any gas powered car so you can definitely install it on your 2011 STi. It will require a professional recalibration/tune of your car to function properly so please keep that in mind.

      Tanner S. 4 years ago

  • AnswerQ: Monitor  DrewPat 5 years ago

    Where does the monitor/dash light go?

    • A: With this being a universal product, there is no specified location for the monitor/dash light. If you are looking for suggestions on where to mount it, then I recommend searching the forums for your type of car and get some ideas based on what other people have already done.

      Zach G. 5 years ago