Dan.1977P
Active Member
I can't explain it except to say my speedo is 1-2mph fast so I could be off by a little. I don't smell gas anymore after running it hard through the gears so they obviously did something right. Regardless of the numbers, I only notice a big drop off on MPG after I run hard down the interstate. If I stay closer to 65-70 than 80, my gas mileage goes back up.