Which FASS product will work best for you?
Select the appropriate tab below, then answer a few simple questions. We'll show you the product that best meets your needs, and in some cases an alternate that would also work. We'll even let you know if you need any additional parts to help complete your installation!
This system is designed for the 2017-2019 L5P Duramax WITH AFTERMARKET TUNING!! If the truck is not equipped with an aftermaket tune and the ability to delete specific codes, the vehicle will have a MIL after the FASS installation. Consult with your calibration supplier prior to the FASS installation to confirm they are able to delete specific diagnostic codes.
For questions or additional information please call tech support at 1-866-769-3747
Thanks for using the FASS Diesel Fuel System Product Finder. Please select your vehicle and wait a few moments as it takes time for the system to find your matching products. Can’t wait? Please, contact us directly anytime.