I'am getting ready to install a K&n cold air intake but what is the difference between a metallic and non metallic tube besides the HP? Which is better and performs better?
But the metal ones are so shiny lol Snrusnak makes a good point, with air moving through the tube, plastic or metal, heat sink really only takes place at a stop light. For daily drivers it's not a big deal. If you're taking the truck to the strip all the time and are in it for pure performance I'm sure the plastic tube routed down to the bumper would be the best. But since the most acceleration I do is from the on ramp to the highway to beat that pesky semi in the right lane, I'm ok with the metal tube :smileup:
An intake system is really meant to be used in conjunction with everything else, such as a tuner and full exhaust system to include headers. More air in = more air out. That's when you'll see more performance gains. Until then though you'll get better throttle response and that "roar" sound, but not a whole lot of anything else. Kind of like what I tell a couple of my Ricer buddies, just because you sound faster, doesn't mean you are faster.
Ya I noticed that inlet is tiny, I don't get how air is pushed into that area with it basically sealed off behind the headlight and fender liner. Obviously some gets in through the gaps around the headlight housing, but not nearly enough.Oh no i still have the tube i just drilled out a hole in the bottom and ran a tube down to the grill because that stupid fender air inlet is to small and restrictive believe me doing 40 and i mash it and that air really gets in there made a huge difference