Well.... I just bought and installed my new cold air intake kit from AFE.....

http://www.afefilters.com/
http://www.afefilters.com/5410112.asp

This kit fit liek NOTHING else out there, uses factory holes and bolts, the tubing is jsut PVC junk or thin wall sheetmetal... its thick ABS, the filter is pretty damn nice.... I had a flowmaster exhaust put on when i got the truck, but I wasnt happy. It jsut didnt sound throaty,even under full throttle, the drop in K&N helped, but,i was sure there was more.... wellthis system, made a KILLER diffference... low end isnt a HUGE differnce, but over 2500 rpm it COMES alive... pics will follow...