Ok, so i got this stuff from a friend who used to have a evo8. I was woundering if you could tell me what these parts are exactly. I know what the intercooler and the stock air box is but im not sure what these pipes are. im assuming upper and lower pressure pipes. i think the ones on the left are aftermarket. What brand are those? Thanks for any input.

 

3/4 is the stock upper ic pipe.
5 is the stock lower ic pipe.
2 looks like a aftermarket upper ic pipe
1 might be a aftermarket lower ic pipe.