JHM-Devilsown Water-Methanol Injection Kit for B7-A4 2.0T

JHM-Devilsown Water-Methanol Injection Kit for B7-A4 2.0T


  • $387.87


JH Motorsports is excited to offer the DevilsOwn Methanol Injection System!

This kit features a DevilsOwn 2nd Generation Water-Methanol Injection Controller. This kit is designed for 1 wire hook up to an 0-5 volt input source. You will then be able to increase your boost timing and most importantly, you will have more power. Another new feature of the 2nd Generation Digital Variable Controller is that you can hook up a float level sensor, or any other ground trigger, to one of the controller inputs and it will light up the multi-function LED thereby notifying you of your fluid levels.

The DevilsOwn Progressive Water-Methanol Injection Kits main purpose is to suppress detonation caused by high temperature and pressure that has developed in the combustion chamber when the effective compression ratio has been taken beyond the auto-ignition point, by either a turbo or a supercharger.

Compressed air is heated air that causes a reduction of power and detonation. DevilsOwn kits helps lessen any reduction while also increasing fuel mileage. These kits are for applications where you desire the full control of your water injection needs.

Cool the compressed air with the DevilsOwn water-methanol injection kit. Because water has a high latent heat content, it is extremely effective for controlling not only the onset of detonation but also the production of oxides of nitrogen in modern lean burning engines. Methanol, with its 116 octane high flash points and specific gravity, helps further reduce the chances of pre-detonation.

Benefits Of Water-Methanol Injection:

-Increase horsepower safely by 10-15% 
-Lower air temperatures by 50-200+ degrees 
-Increases octane when you need it under boost 
-Reduces cylinder temperatures up to 300+ degrees 
-No wear issues only clean combustion chambers 
-Allows you to safely run more boost and timing


System Contents Include:

-Digital Progressive Controller (fully adjustable) 
-250 psi pump with EPDM seals 
-Heavy duty nickel plated check valve 
-15 ft of black high pressure nylon tubing 
-Micro Droplet Nozzle (Dependent on turbo setup) 
-All necessary hardware


JHM Recommend Controller Settings:


For those running the stock turbo (K03) the recommending controller settings are START: 2.4 FULL: 3.3


For those running a K04 or Larger (Big Turbo) the recommended controller settings are: START: 2.6 FULL: 3.7


NOTE: These recommended settings that we have found that work great for most vehicles, especially 91 octane. Different environments and different types of builds may require some minor adjustments to these settings. Make sure you are using 50/50 Water methanol mixture!




-Plug-in Elbow: Use this elbow when needing to turn a push to connect fitting into a 90 degree bend. This will slide into any 1/4 push to connect. This is a great option if you choose to use your windshield washer tank as your meth reservoir.

-Toggle Switch: If you choose not to use a toggle switch, your meth system will be armed at all times. This can cause you to go through water/meth a lot quicker than you need to. With a toggle switch, you can arm the system when you are ready to use it. Therefore you only use water/meth when you are wanting to.

-Turbo: We take the guess work out of the kit for you by providing you with the correct size nozzles needed based on what turbo you are running. This will save you time and money by not having to purchase multiple nozzles and swap them out until you figure out what works best.



There are many ways you can install a water/methanol kit. Here are some basic instructions showing the fundamentals on how the kit should be installed: CLICK HERE