I know this has been beat to death but here goes. I'm going to install a closed system cold air intake, after reading several threads now I'm not sure which to buy, Keep in mind I'm looking for more MPG's not more noise. I've heard good things w/ the volant but others say it gets their truck oily, the S&B looks okay but haven't heard much about it. The PSM seems reasonable in price and uses drop in filters that I would like. A buddy is a shop foreman for dodge and he told me K&N will void the warranty. If anybody has the cool blue w/ the PSM intake w/ the amsiol filter and a volant carbon composite intake manifold how is your fuel milage?