I have a K&N air filter in my truck right now. I have heard that the oil from the filter can cause damage to the turbo. Would I be better off goin with a cold air intake or will it not kae much of a performance difference?

 

Just get a BHAF (Big Honkin Air Filter) and be done with it.

Mopar1973Man's Dodge Cummins Articles - BHAF (Big Honkin' Air Filter)

 

i went with a AEM dry filter, requires no oil just blow it out very good every other oil change