Quote Originally Posted by Iron Indian View Post
1998 is the only year Perf Shift will light up in the Cluster as far as I know, otherwise it will light up in the DIC. You can add the Perf Shift in the cluster too as long as you have the right socket + blub.

I added it to mine so when Perf shift is on my DIC lights up and so does the cluster. I added it because I had a spare blub and socket laying around. Figured what the hell, right? :-)

NOTE: I don't know if this will work on 2001+ that don't have Perf. Shift factory wired up.
I think is mostly correct. My DIC was the one that came with the GTP package so it had the PS indicator there. I never saw it on my dash. I only knew of it on my DIC. And never looked at my dash that closely to see if it was even an option on it. But any of the DICs that had the BOOST feature on it, also had the PS indicator on it as well. They went hand in hand.