Couldn't be any easier... it's like drilling through soft plastic!!
20mm flat wood bit -- drill 4 evenly spaced holes in the front slope of the airbox lid. Should be obvious when you look at it!
Short length of duct tape -- for covering two holes on colder days/evenings to richen it back up a little if necessary!
Simple.
_________________
Andy.
NSR-WORLD.COM
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