[Ryan5Series]

Hey guys, time for a new filter. I have heard nothing good about using K&N so any other tips? I am in Canada it's for my 540/6

 

[Colorado Corey]

Stock style meaning stock air box, k&n would be fine

 

[ThoreauHD]

Mann is OE. K&N lets in more air, but the OE Mann seems to be better at particulate filtration. The design of our cars are not starved for air(unless you have a aftermarket turbo/supercharger). Either filter will be fine, and you wont notice a difference. Just stay away from anything that you have to oil. It does more harm than good.