Hello all, I just bought a 2012 dodge ram 2500 4x4 diesel. I am planning on buying the Superchip 3841 or 3842 for it. Would like some feed back on if I should do this, I put AT2 285/75R/17 Toro tires on it, they are 33" tall tires, is it ok to run a tuner on these newer vehicles with that smog crap on it (dpf I think they call it)...etc, any info would be appreciated