yes my cai is still fitted...its never being removed lol
although i would like to cut the alu pipe abit shorter to tuck the filter up higher as its rather close to the ground
because of my intake, mine is probably alot louder than most peoples
the bolt wont make any difference to sound, its not a leak or anything like that so dont worry
the sound is a combination of the TIP, dv and the type of induction you have