but you will be at the very max of those turbos. I'm just looking at longevity as well. But I guess if you're mature enough and run your lower boost settings most of the time (only turn it up when necessary), it's probably no big deal. I'm just waiting to see numbers on the JWT 535's with Greg's manifolds. I think they had dynoed 450 with 500's and the manifolds, but I could be mistaken (may have been without the manifolds). Anyway, I just like to hear all the options. :-)