Today's review sample was originally a pretty good cooler in its earlier days. The Mugen cooler was a favorite of many reviewers that had the pleasure of reviewing it. Performance was right there with the Noctua NH-U12P, Tuniq Tower 120 and many others we regarded as very good coolers. However, the new version is not only compatible with the new Intel i7 processor, but is heavier, taller and comes with a better performing cooling fan. Is it enough to put it at the top of the list with the likes of the Thermalright Ultra-120 Extreme and the new Zalman CNPS 9900 LED? We shall see.