No need to pull tb clay
The only thing that can break on header install is the freaking studs. other than that its a simple install
looks like its new radio time soon for me. i checked my XM before and it was on a free trial. so i cranked up the tunes, and with in less then a minute i had smoke pouring out from under the dash, shut the car off. aired it out. it stopped smoking. and it still works.
lets hope its not burnt to the ground in the morning.