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tjts1 · 07-28-2008, 12:04 PM

K&N air filters are a scam.
BMW E30 air filter tests
Air Filtration Test
The best filter is the one that filters out the most dust particles out of the air. There is no fuel economy to be gained here.

07-28-2008, 12:04 PM	#7 (permalink)
tjts1 Banned Join Date: Feb 2008 Location: california Posts: 1,329 Thanks: 24 Thanked 161 Times in 107 Posts	K&N air filters are a scam. BMW E30 air filter tests Air Filtration Test The best filter is the one that filters out the most dust particles out of the air. There is no fuel economy to be gained here.