I really like this air cleaner and I have been running it for about two years now. It replaces the "ham can" and is round in shape, so those who want to keep the stock look will not find it acceptable. Performance is great and the quality is top notch. The price is lower than Screaming Eagle air cleaner and it is on a whole other plane of quality, durability and performance. Screaming Eagle air cleaner for the rubber mounted Sportsters is utter junk. It does not breathe very well (at least compared to the Big Sucker), the filter develops holes within a few months, the backing plate is plastic (vs. cast aluminum in the Big Sucker) and HD does not stand behind the unit (90 day warranty and then you are SOL when the filter has holes in it). I had an issue with my Big Sucker filter that I was partially responsible for (some fuel spill into the filter) and Arlen Ness sent me a free replacement filter ASAP with no fuss whatsoever. Oh, and the filter itself on the Big Sucker is an oiled K&N type filter, the SE filter is some sort of dry medium that obviously does not hold up to normal use and does not breathe all that well.
So, stay away from the SE air cleaner. Consider Arlen Ness and also Nallin Hurricane, which is a bit more expensive, but from all accounts a superb piece of gear. See the Hurricane description on NRHS (Nallin Racing Head Service) here.You can find a review I wrote on this product here
