If the TAG class was designed as an affordable way to get some of the speed of the shifters without selling the farm. Then why are we considering allowing expensive aftermarket air boxes. Where does it stop? Hot ignitions? Aftermarket carbs? Performance pipes? Lets keep it simple and straight forward. If you want to tinker with a package buy a shifter! Don’t turn Tag into a bottomless hole of $ upgrades just to keep up with the Jones.