That has to do with diesel engine that have D.E.F. injection systems that uses fluid to breakdown exhaust particulates. You can bypass the system and make huge power. Good read here: https://www.hardworkingtrucks.com/exhaust/
For Sale: Pair of RaceStar Wheels in the black finish. 17x9.5" rears. Never mounted, 1 box still sealed, the other opened to take pics only. Comes with RaceStar closed-end lugs for the 15-19 Mustang.
$450 shipped to 48 states. Firm on price as they are brand new. Accept PayPal or cash if you...
15-18 Covercraft Delue Custom Fit Cover with the 50th Anniversary hood logo. Used indoors. No rips or stains. No longer have the vehicle is the reason for selling. This is the exact one from American Muscle:
JLT CAI for the 2018 Mustang GT. Used for approx.. 4K miles. Complete kit with instructions. Tune is required. Reason for selling is that I no longer have the vehicle.
$200 shipped to the 48 states via PayPal.