Quote Originally Posted by Dboy23 View Post
There's too many words that I don't understand, which one of those things do I need to mark those little bubbles?

Performance Powertrain Control Module (PCM)

So that one is bad for a 2004 GT?
All you need to do is under the 'Vehicle' option select 'Grand Prix' and then right below that where it asks for your year model select the year you own and you'll get the PCM you need.

The other stuff I can't really help you with too much since I don't know your personal preference.