I made the trip to KC on Friday and met up with Pynikal who has a good setup to replace the stock airbox. I helped with the install a little bit but didn't want to step on his toes, and it took just a little over an hour to install everything. If you don't want to modify anything it is possible to keep from trimming any lines or hoses if you would like to have the option of going back to stock at any time. I don't plan on going back to stock, so I had some hoses trimmed and a sensor lengthened. Everything looks great and and one of the biggest advantages is that you NEVER have to deal with the airbox when you do maintenance on your 9. The Sleeper Mod definently sucks in some serious air, I can hear it even under WOT with my sideburner screaming. I will post power numbers as soon as I can get a dyno tune, but the power feels especially good in the 5-7000 rpm range. If you have any questions I will do my best to answer them otherwise contact Pynikal, he is a great guy that will go above and beyond to ensure that you are happy with your Sleeper Mod.