Ok guys , theres a ton of us out there, we know and they (Hemi) know it! so I figured we deserve our own little section here. Anyone here upgrade anything performance wise. I went to the K&N site and they make an upgrade on the filter. Its actually a working part number and Auto Zone sells it. Has anyone tried it? Also they spec to use 89 octane, Ive been following that to the bone, anyone try super and notice any differene at all? Just curious. I know it makes no difference in my truck, damn smart computers. Ive got all the outside mods done and just put in a banging system, now im borded and looking for some other stuff to do....any suggestions would be great!