CAI systems usually use one of these three different materials for the pipe (Metal tube, plastic or rubber)

I know the metal ones are not the best choice due to heat issues, but whats the difference between rubber & plastic? Which one of them transfers less heat & has more heat resistance?

 

rubber??? whos making rubber pipes... they are usaully plastic pipes with rubber joints to connect the cia to the throttle body and yes they are far superoir to metel ones.... hope that helps

 

Airaid pipe is rubber isnt it? K&N & Volant is plastic.