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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="" /> )


Fair point. I guess I was think about cooler, denser air being forced in when moving at speed <img src="/forums/images/graemlins/cheers.gif" alt="" />

'97 Montero 'LSR' - 4.6 gears & factory rear locker, 33" Procomp muds on 15x8 steelies, 50mm coil spacers, T-bar crank, Airlift, sans rear sway, 50mm rear frame & fuel tank lift, Aisins, ARB front bumper + 10k lb winch, 50mm DIY body lift, rock sliders, cut rear quarter panels...