cruiseroutfit said:The only thing I can think of is the potential damage (such as ripping out a-pillar mounts) that could occur with wind vibration and force at high speeds???
I have heard of this issue that Wil mentioned. However I believe it has something to do with the vortex created within the filter at high speads actually causing a vacuum and starving the engine of air volum.
But then again to quote Ferris Buler playing the clarinet, "I've never had one lesson"!