welp just picked up my 2005 CTS-V last week from colorado. and so far i am in LOVE with the car!. this is my first fast v8 car. kind have been in the duramax world the last few years...YUCK. i already have done a muffler delete and a CAGS eliminator is on the way. i already have noticed the axle hop issues and will be ordering axles sometime soonish. but i am not too worried about that yet cause im trying to baby the car. minus those items what are the major parts/upgrades people seem to do to the V's? and who here is in montana?