[JL8Jeff]

I actually went 1 size up on the tires from 285/75 to 295/75 but I'm sure the tread pattern is going to be the big difference. I can really feel it and hear it in normal driving and the block size on the Mickey Thompson Baja MTZ tires is huge compared to the AT tires. But looking at the LTFT on the scanner after the ported TB vs stock is showing how much better the air is flowing in. I also cut back the EGR tube that sticks into the intake like I did on the SS and that is probably helping airflow as well.

Mark, that makes me wonder what the EGR setup looks like on the V6 cars? If the tube sticks into the intake as bad as it does on the V8 cars you might want to look into trimming that tube back to allow better airflow.