well i went with the xzt+ because of the adjusting on the fly and the box can be mounted on the inside does this box have a boost fooler? also since quad has not updated any tuning files for it since 08 whats the best one because once i update it i will leave it or just run the one it comes with? after reading i decided not to do the superchip tuner and saved 50 bucks from the DTR store it will be nice to have my truck back since the death of the vann aaken.