if gauges and suspension is mainly things u got done for, take them off, and u can leave your intercooler on. As long as its secured they are not illegal..I just took my car thruogh regency 3 times to get off defect, they were absolute assholes, but intercooler they said nothing bout.
Unfortunately, even if buying from car yard, i didnt think that defectable items such as gauges etc would have been under warranty....becasue you were buying the vehicle with those mods and they were visible to you at the time of purchase?
Goodluck with it though Just take the car through regency pay the 75$ and get the list of things to clear up...after that fix those things on the list and go through again..Then the second time thet arnt allowed to add new items on the list... Not a biggy
BB out