Do Performance Air Filters Actually Work?
I know this has been beat to death here with most people stating that they don't add any horsepower without any dyno data to back it up. Well Jason Fenske from Engineering Explained decided decid...
Forum Discussion
azdryheat wrote:
Work or not, I use a K&N in my Duramax and Harley
Why would anyone want to dust an expensive diesel engine.?
