Why would they? From additional drag? Longer more restrictive intake? <img src="/forums/images/graemlins/wink.gif" alt="" /> Air in fender is just about as clean and cool. I most certainly didn't observe any gains with mine (and I really tried hard to observe them on trip to MN, replaced an air filter as well <img src="/forums/images/graemlins/lol.gif" alt="" /> )


92 SR, 285/75R16 Yoko MT ARB locker GAST compressor AirLift 1000 MM10500 Snorkel custom rear bumper
02 Montero LS died protecting the master
08 PowerWagon (stock!)