[quote name='Justin42']Intercoolers are questionable at best, and will actually hurt your xbox at worst... MS has said they won't repair systems with Intercoolers (which if they melt onto your system would be hard to deny).
There is a new revision of them but there really isn't any proof they actually work to cool the system. Keep in mind your system already has cooling fans, putting more in parallel doesn't mean they'll work better.[/quote]
To each his own.
I have a 1st gen Nyko Intercooler -- works fine for me. Had it as long as I've had my system, about 30 months now. No melting parts. No RRoD. Why? The most I've played on my 360 continuously was a little more than 6 hours, but I normal average about 1.5 hours of play when I decide to play. I just don't abuse my system -- even if I wanted to play nonstop, I don't. So 1st or 3rd party products fall under the same category to me: YMMV.