Aint a matrix fourm if you dont got the Aardvark Crew
. The rock mod how do you feel about drilling a hole in your matrix. Aardvark has a reg called the trinty that is cheaper,easer to install and performes, same gas effency as the rock. Ya keep your eyes out for Aardvarks Custom Matrix cause it's going to be Killer. It comes with all the Aardvark Custom products trinty reg,0-ring kit, volumizers, lowrise and a custom mill job. No set date yet.