30s is roughly what I tend to get on the sierra, with an rs500 cooler, pretty good setup that really, to only be about 10-20 degrees above ambient when running a couple of bar of boost!

On the nova after really beating its face in hard its mental the difference between the metal hardpipe before the cooler and after it, the one after doesnt get as warm as skin temperature but the one before it you can barely touch its so hot!