Alright, first, don't worry about the bottom end, or lack thereof. This is the easiest fix and cheap if you just throw a 13 tooth sprocket up front. Plus, after fifteen to twenty hours, it really starts to open up. Change your oil AS DIRECTED, along with following break in proceedures. It helps me sleep better at night knowing my warrantee will hold up. If the axle breaks, blessing in disquise, get a lonestar. If you go with the K&N, intake, get the outerwears too cause havin the lid off is just way better and who knows, it could not get anything one time, then it could be crammed with crap. Umm, I dunno. Wear a helmet and have fun blowin by those ex's, as soon as it's broken in anyhow. Keep us posted on what you get and when.