Not sure what type of flexible hose would be favorable to use, for the first half of the re routing project. The tail end, I have the 3" O.D. tubing formed, but where it goes into the engine at, I will need to do a 180, and try to have the outside to outside about 8" so I can fish it through going the other direction, and then hook it up to the tubing? It is on a Subaru WRX. The 10" mandrel bent ones are too crowded.

I'm wanting to re route it so that the air filter ends up on the drivers side, instead of where it is, down along the bottom of the firewall picking up more dirt, and not convenient for cleaning.

Any, thoughts, ideas or suggestions on what type of tubing might work best? Going to have to be flexible, in so that it won't kink doing a 180.

http://www.usplastic.com/catalog/item.aspx...CFe1AMgodS3YADQ

http://www.ducting.com/Air.html

http://www.hosecraftusa.com/material/Rubber_Hoses