I stumbled across a line of hose from goodyear. Apparently you can have them custom make intercooler plumbing mocked from whatever setup you have to replace all the aluminum piping you may have, to all rubber- well whatever the stuff is lol. Its very light yet tougher than silicone. They claim its inexpensive too. I plan to call and find out more about this as it would like nice in replacing my 2.5" black aluminum piping (not that it looks bad anyway lol). Here is the link for the line-up. It eliminates couplers in between piping and all too. You just give them sizing and the bends and such needed. The turbo-boss 480 is the toughest one. Also good for oil return lines off the turbo! The 480 means it can withstand temps of 480. Constant of 420 or so. And resists oil.
http://www.goodyearep.com/ProductsDetail.aspx?id=21479