I would stick with running it up the A-pillar. Alot of dust swirrels around the back of vehicles. As far as power loss? I think they actually increase power a little because of cooler air being mixed with the fuel. <img src="/forums/images/graemlins/kewl.gif" alt="" />

Maybe someone who actually has a snorkel will chime in and help you. What kind of truck? -Chris <img src="/forums/images/graemlins/cheers.gif" alt="" />

96 Montero LS 24V DOHC 3.0L.
98 Montero 24v SOHC 3.5L, factory rear locker, Winter/tow package.
63 Jaguar XKE 3.8L FHC
2000 Mercedes-Benz e430
07 fj cruiser