I'm wanting to put stainless filters in my 09 450FE. I've been running them in my CRF's for years and love them. Does anyone know if the Berg uses KTM filters and if so, which model do they come from? If I can get a cross reference, I'll be able to find a stainless setup that'll work for me. Also, do the filter covers that go on the case cross ref to anything KTM? Some of the filter kits come with billet covers and I wouldn't mind adding a little eye-candy to an already beautiful bike.... I've done quite a bit of searching and it would appear that (the older?) Bergs use KTM filters, but I can't find anything that narrows down the year model. The more I ride this machine, the more I love it. After the suspension broke in and I figured out how to correctly set up the dash, this thing's just killer. I've ridden it in the wet, slick woods of Ohio to the desert of So-Cal and AZ and the Berg does everything I ask of it. Now if they'd just make a motocross bike that works as well as the FE, I'd ditch my CRF in a couple of years!