Originally Posted by wstar

Catch cans and TB coolant bypass have almost nothing to do with oil temps .

There's some easy things you can do: e.g. change your coolant mix (more (distilled!)water, say 70/30 instead of 50/50) and use UpRev to turn on the fans earlier. There are already some really long threads on this whole topic that started years ago, you can read them.

I really wouldn't worry about it unless your temps are running away from you out past 250, which it really shouldn't do idling in hot traffic. It's high RPMs combined with low speeds (low airflow) that are going to run up the temp. Try a higher gear if you're seeing temp spikes in traffic (and if you don't have UpRev-modded fan speed control, make sure your AC is on: it keeps the fans running). I could easily see someone crawling along in 5-20 mph traffic staying in first gear the whole time having more problems than, say, someone who goes ahead and uses 2nd (or whatever applicable gear that doesn't drop the revs so low as to lug the engine out).