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I didn't know there was such a thing, might have to do some research on this lol. I have recently added a custom metal intake pipe from the TB to the airbox and have picked up a noticable amount of power over the rippled rubber/plastic pipe. am trying to decide which way to go with a CAI without cutting the body as others have done.
I don't have the net on anymore but will try to get some pics up one day as well as the dyno sheet (before intake pipe mod, prolly got more KW now)
Yeah it was really a find of luck and coincidence, I was at u-pull-it (pick a part for those who have it lol), and happened upon the pipe, bought it for the princely sum of $6 painted it and fitted it. I still need some more silicone connectors and clamps and to paint the other section of pipe. but need the car off the road for 24hrs to do this. The pipe is 2&1/2 inchs in diameter and has the spot for the line that runs to the intake as well as the clips that hold the leads on, Heat soak is not a problem like I thought it could be which is great. Its not pretty atm but I'm gonna get there soon hopefully lmao. Any exhaust shop would make you one on the cheap and then its just a matter of polishing or painting it.