California Diesel Smog Check

Starting in 2010, diesel pickup trucks (1998 and newer) were included in the newly revised California Diesel Smog Check program. As part of the inspection, the technician is instructed to confirm that any aftermarket products on the vehicle are emissions compliant. Some products, such as intake systems and exhaust systems are not affected by this inspection. But any electronic product, such as tuning devices, will require a California Air Resources Board Executive Order (CARB E.O.) number to pass the inspection.

Gale Banks Engineering (GBE) has committed a significant amount of resources to develop calibrations for Banks Power Diesel Tuners to ensure that they will meet CARB’s criteria. During 2010 and 2011, Banks tuners were given special dispensation while undergoing testing which allowed vehicle owners with certain Banks products to pass the Smog Check inspection without an E.O. number. GBE has now completed the required testing and secured E.O. numbers for all the diesel tuning products in question.

If you own an EconoMind, OttoMind or Bullet: Prior to your next Smog Check inspection, you will need to request the appropriate CARB E.O. sticker from GBE. Without this sticker, your vehicle will fail the Smog Check inspection and you will be unable to register your vehicle. Please fill in the information section below.  We will use this information to confirm the format of your tuner, which will allow us to send you a CARB E.O. sticker for your Banks product.

If you own a Six-Gun: In its present state, your vehicle may be releasing pollutants which exceed California standards. In order  for your GBE product to be CARB compliant and receive an E.O., the calibration in your Six-Gun tuner needs to be reflashed by GBE. Once reflashed, GBE will issue a CARB E.O. sticker for your device. Without this sticker, your vehicle will fail Smog Check inspection and you will be unable to register your vehicle.

There are 3 options available to you:

  • Visit Gale Banks Engineering in Azusa, CA for an in-vehicle reflash of your Six-Gun Diesel Tuner.
  • Join us at one of our scheduled Diesel Tuner Update events at various locations throughout California
    (as information about these events becomes available it will be published on
  • Remove the Six-Gun tuner from your vehicle and send it to us. We will reflash it and return it to you.

Please call (800) 920-0026 and leave a recorded message letting us know your contact info and which method you prefer.

GBE is the industry leader in providing clean diesel performance and offers a full line of emission compliant tuning product for your GM, Ford and Dodge trucks. We thank you for your loyalty as a customer and we trust that our efforts will provide you with continued satisfaction that you have come to expect from our products.

In order to ensure that we can get you taken care of, we will need you to let us know some information. Some products are fine as they are and simply require a CARB decal, and others may need to be reflashed. In either case, the information that you provide will allow us to better serve you.

If you own a Banks Bullet®, EconoMind®, OttoMind® or Six-Gun® please fill out the information below: