Originally Posted by
KyChallengerR/T6spd
I could tell a difference after 5000 miles in my engine. More power and mpg. But then again maybe I had gotten past trying it out everytime I took off . The automatic has a more restricted exhaust also. My worse has been 17.5 and that was when it was new and I had pedal to the metal often. Now I just enjoy the ride. My wife's Chrysler 300C get's a average of 18 mpg. And a best of 24 on the road most of the time. I have a drop in K&N filter in both.
Ok well the first stretch of the trip was not as promising as I hoped.
21.8 mpg @75mph
I was bucking a bit of a crossing headwind though. I also was climbing a little in elevation. The trip was Dallas to Lubbock.
I'll be headed back on Sun and the wind is supposed to be out of the north west. Hopefully it'll be a little better.
BTW- did you notice much performance improvement from the K&N drop in filter?
Their website doesn't boast any HP increases for it but I know the one I put in my CTD Ram made a major improvement.