Macht Schnell Intake Install ?
I am going to tackle the install tomorrow morning on my 2009. I have watched the DIY video and it shows you replacing the air filter adapter "nubbin" bit in the airbox but doesn't mention whether or not this is required on the 08/09 models, so based on the video I am assuming this is required for all model years? Previously I was under the impression this was not required for 08/09s.
Interestingly, I watched the air filter only DIY video and it does not mention replacing this part at all, although their website says if you have a 2010+ you need to replace it with the MS adapter piece.