i'm fixin to start workin on a custom air intake, using a K&N filter and extending out and to the right, away from the throttle body. any idea what kind of tubing i should use. i know you have to use pretty strong stuff so heat won't destroy it. do they sell pre-polished tubing or will i have to buy aluminum or something and polish it myself? thanks yall... also, right now i have the stock rubber hose leading into the throttle body. when you're facing the engine, on the left side of the rubber hose about 2 in. away from the throttle body is a metal tube about 1/4in. wide that leads into the engine block. any idea what this is? also, when i install my new air intake will i have to connect taht 1/4in. tube to my air filter tube? thanks for your help, i have no idea what that pipe is for

 

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