K&N and air flow sensor
http://www.peachparts.com/shopforum/showthread.php?p=663745

Air Intake Mod....
http://www.peachparts.com/shopforum/showthread.php?t=63464

K&n filter??
http://www.peachparts.com/shopforum/showthread.php?p=1354377

K&N Air Filter
http://www.peachparts.com/shopforum/showthread.php?p=401484

K+N Filters are a bad idea for diesel engines.
http://www.peachparts.com/shopforum/showthread.php?p=984635

K&N bad experience
http://www.peachparts.com/shopforum/showthread.php?p=817165

K&N Filter Efficiency Tests
http://www.peachparts.com/shopforum/showthread.php?p=810804

Any updates to open air filter intakes?
http://www.peachparts.com/shopforum/showthread.php?p=877618

Rebuilt Turbo & New Air Intake - Pics!
http://www.peachparts.com/shopforum/showthread.php?p=550690

are the K&N air filters worth it
http://www.peachparts.com/shopforum/showthread.php?p=40164

K&N air filter for 300SD
http://www.peachparts.com/shopforum/showthread.php?p=655948

K & N air filters vs. OEM?
http://www.peachparts.com/shopforum/showthread.php?p=226592

K&N air filter on MB diesels
http://www.peachparts.com/shopforum/showthread.php?p=602132

K+N Filters - for a Diesel ??
http://www.peachparts.com/shopforum/showthread.php?p=710523





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AIR FILTER STUDY COMPLETED!!!!
http://www.dieselplace.com/forum/showthread.php?t=10372&page=41&highlight=air+filter+study