I've heard that taking that cover isn't a great idea. If you're not careful can mess things up. I don't see what can be easier than remove the airbox/filter, spraying some cleaner and putting it back on.
98.5 SVT
91 Escort GT (almost sold)
96 ATX Zetec (i brake to watch you swerve)
FS: SVT rear sway bar
WTB: Very cheap beater
CEG Dragon Run - October 13-15