I buy my u bends off ebay. You have to either figure it out or have some one do it for you. I had to cut to big holes beside my battery tray and where the water resivior sits to run mine into the engine bay. some have cut aound the radiator to run pipes. It's all how you want it done I suppose, and how you want your engine bay to look like. If my motor was in I take a pid I might have some somewhere.
pipe coming up from battery area
Not a great pic but pipe going beside water reservoir.
they 90* down into the fender well then 90* forward toward the bumper then 90* around the front to connect to the FMIC. So my way (6) 90* or (3) 180* bends
plus the bend coming up from the turbo depending if you use the BB up pipe or not. I fabbed a single gradual diameter increase pipe outta steel to replace the aluminum BB pipe to get rid of as many couplings as I could