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Join Date: Nov 2007
Location: Chandler, Arizona
I had a Weiand tunnel ram on my '85 Camaro drag racer, with dual Edelbrock quads on it, topped off by a Hilborn style scoop. It did have filters, something similar to the K&N ones. They didn't filter very well, but were only used 1/4 mile at the time. I had an additional foam filter that fit over the end of the scoop, which I only removed when I pulled up to the staging line. It went back on for the dive over gravel from the end of the track back to the pits.
Non filtered air, or poorly filtered air, ala K&N, usually erodes the valves and valve seats first before much wear starts showing up on the cylinder walls. Meanwhile, while that is going on, it has found it's way into the crankcase oil, and has already started wearing on the bearings and cams.
I am a motorcyclist, NOT a biker.
1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike