I was wondering the differences between the $1,200 ipd/tme ecu swap, and the pes $600 chip. I know i will have to send my core in to pes versus getting another $1k core charged to me wile ipd waits for mine to arrive, but i was just wondering some of the software differences? Hp differences? Has anyone had problems with either? I have been on the audiworld site, and have seen ppl say their a/c stopped working after installing their chip etc... thanks!