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on the contrary...
PVC has a smoother inside for the piping and being thicker a naturally better insulate. (unless you buy some polished aluminum tubes (of course polished inside)
depending on the tubing you buy, the size is much wider than stock. in my case (I used PVC) the piping is wider through the joints and pipes than the TB. so the point is just to make sure the TB always has the necessary air. (also stock plumbing has baffles as a part of it) and if nothing else it changes the intake note so it sounds much better. and on these cars with the intake right behind the drivers ear that by itself is a high point.
the one downside to using PVC is that over time the heat can crack the plastic. but being so cheap it is no big deal.
in comparison I could spend 20 dollars on a nice breaker bar for those stubborn bolts... OR i can go to home depot and get some PVC and use my existing ratchet.
adapt and overcome and Home depot is your source for many things.
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