Eastfork!
Before you spend your money read this ISO 5011 air filter test results:
Aftermarket Air Intakes/Filters - Do They Work? - Diesel Place
Although this study was performed with a Duramax diesel engine the results should apply to all internal combustion engines.
I ran a K&N filter on my old Dodge CTD. Every time I cleaned the filter I found some dust upstream of the filter coating the inside of the intake housing.
__________________
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA.
" My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy