EFIE/ MAF ADVANCED GAS TUNER for HHO kits-(currently ONLY available with full kit purchases due to high demand)

These power packed QUAD EFIE/MAF/MAP Advanced HHO Tuners are perfect for the basic hho generator installation. The Narrow band version covers up to 4 Narrowband O2 sensors, and either MAF or MAP.

The Wideband version supports one or two Front Wideband sensors, and up two Rear Narrowband sensors; get the additional control you need to see long term gains.


If your car is older, you may only have one O2 sensor - this is still the right EFIE for you. If your car is a 4 cylinder, just use one front and one rear adjustment setting. If your car is a 6 or 8 cylinder - use all 4, O2 sensor adjusters. 

  • Does not modify or change your cars ECM programming.
  • Includes a MAF/MAP connection to lean the fuel flow
  • QUAD EFIE (Adjusts from 1 to 4 - O2 sensors) get the additional leaning power you need to see long term gains
  • Will not harm or change ECU programming

For best Long Term gains- use this Advanced Tuner! The MAF/MAP affects timing, the EFIE's control Air/Fuel Ratio (AFR)

DO I NEED ONE OF THESE? If your car or truck is newer - and has Fuel Injection instead of a carburetor (gasoline), you will need this. Older cars from about 1987 to 1996 will use minimal features of this tuner (which it is made for); The newer the car, the more sensors you will have. This one is used for 90% of all cars.

These are for gasoline (petrol) only. If your car is a diesel with electronic control, you need a Diesel Chip instead.

(product may be slightly different than image shown)



All orders over $100 within the U.S. qualify for FREE SHIPPING! Simply add the HHO kit of your choice to your cart and you will automatically get free shipping with FedEx Ground when you are in the contiguous U.S.! Orders to PO Box addresses, APO/FPO, Alaska, Hawaii, and Puerto Rico are fulfilled with USPS Parcel Post. After your order is processed, you will receive an email with confirmation of your purchase and address. Orders are generally shipped within 1-2 business days after the order is placed. Once it has shipped, you will be emailed the tracking number.

It generally takes 2 to 7 days after your order is processed to receive your kit or parts via FedEx Ground. Orders sent via USPS Priority usually take 2-3 days, USPS Parcel Post generally take 1-3 weeks on average, unless you opt for USPS International Express which is normally 3-5 days.

Canadian Orders:
We gladly ship to Canada but you will be expected to cover all brokerage and handling fees. Canada Post may also require a small import tax at your door.

International Orders (outside the US and Canada):
We ship to many countries outside the US and Canada, but do not currently ship to Iran, Afghanistan, or China. If you are unsure, please email us and ask. Overseas packages are always shipped via USPS International Priority (7-14 days but can take longer), or International Express which is guaranteed 3-5 days (but costs $25 per package additionally). Depending on country and kit selected, prices range from $49 to $125 on average. We do not use UPS or FEDEX for overseas shipments as they cost as much as $100 more than USPS. As with Canada, you will be expected to cover all brokerage and handling fees of your own country.

Third Party Freight

Occasionally we will have a customer attempt to purchase our kits and request a third party freight company of their choice. It is our company policy to NOT accept these type of orders. We only use our pre-approved postal and shipping companies, no exceptions.


 What If The HHO Kit Doesn't Fit My Car - Can I Return It?

Yes, you can return the kit for a full refund within 30 days of receipt if you find it doesn't fit your car. Just email our support staff to get an RMA # to return it for a full refund (less shipping).

Is there any kind of guarantee that comes with my HHO Kit?

Yes there is a full Five Year Warranty (800 Series) on our hho generators, and a 30 Day return policy on our kits and accessories.


Pin It