Yes but everyone was talking about RPM ranges with different gearing and everyone's seemed to be off a little... Which will vary... I'm just saying with my 3.55's I'm seeing 1450 like Jay used to when he had 3.55's..... And when the MDS kicked on I noticed I had a higher RPM..

 

When I had my 2006 charger with the hemi I noticed that when mds kicked on it would raise my rpms by about 50 to 70 rpm while in 4 cylinder mode. But I have not been able to see the same with my truck, but I also don't know that mine has ever really run in 4 cylinder that often. We don't have that many flat spots around here.

Edit: To the OP....what gears do you have? Have you found out yet?