Cold Air Induction kit

[Red66GT]

Whats the benefit if any to having plastic tubing vs aluminum tubing for cold air induction?

I'm either considering going with Roush (aluminum) or JLT (Plastic) since those are the only ones I found that u can use with a bullitt intake.

Anyone w/ experience on either?

 

[Jones331]

I thought the Roush were made of a.b.s?

 

[Dark Knight GT]

With any cold air induction kit, plastic has the benefit of running at cooler temperatures than metal. Aluminum is a bit better than chrome or sheet metal intakes, as it disapates heat quicker. Which will run cooler between plastic and aluminum ? I'm not entirely sure, but I'de probably guess plastic by a notch or so. Something also to be considered is the casting of plastic intake tubes tends to be smoother than most of the metal ones, so the smoother, the better in terms of air flow.