Had to troll you for a minute, couldn't help myself. My apologies.
A timing chain is like our timing belts, except a lot less complex and it doesn't drive anything except the cam. W/P is belt driven on the 3800. My old GTP has over 180K on the original timing components with no reason to change them. Don't fix what isn't broken.
Rotated GT35R, eh? sounds nasty. I'm in the middle of a suspension build right now (RCE Tarmac 0 coilovers, swaybars, endlinks, etc) but this summer I'm thinking about doing a Dom3 XTR or TD06 20G build (stock location, biggest TMIC I can find, 850cc injectors (maybe 1200cc in case I switch to E85 later), pump, tgv deletes, all the good stuff. Or buying another motorcycle. Haven't decided which yet. If you're sticking around make a build thread here for your STi and check mine out. Otherwise I'll see you on the dark side (guessing you're on IWSTI, NASIOC, or both).