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wildthing wildthing is online now
Driver, not Mechanic
 
Join Date: May 2013
Location: SF Bay Area
Posts: 3,024
I think with H4s the seals only prevent the rings from touching the fender metal to metal. H4 housings aren't sealed. There are vent holes in the housing, the reflective cone itself doesn't touch the housing, and there's a drain hole in the fender...
Old 10-17-2016, 06:20 PM
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