in case your truck does not have one yet. Pictures of a dirty i/c:
http://www.nloc.net/forum/showthread...hreadid=100203

One of the fixes that can help:
http://www.nhtoc.com/forum/showthrea...&threadid=4786

 

I have the volant intake and like it very much. It takes all the air from the hole in the fender though there are other kits out there as mentioned. And it has been debated weather it flows enough air to make the supercharger happy. Guess i'll have to dyno with it off/on one of these days. Cool air is the key.