· Premium Member
I've never had an issue with my MDS. I've read a lot of people saying that you can feel/hear the motor bog down. I notice it when my windows are down as the exhaust note changes but with the windows up I don't even know when it kicks in and out of MDS unless I'm paying attention to my "ECO" light on my dash. I wonder if some trucks are worse off than others when it comes to how roughly the MDS kicks in and out.