i have to make an adaptor pipe thingy for my turbo...it is right after the hf manifold and i HAVE to weld a little section of about 3 inches...so what type of piping is used to do this???how thick should the piping be and does anyone know where i can buy it online?

 

If Im thinking correctly, You need the HF > t3 turbo adapter? If so, check out http://www.bmcrace.com/ Save yourself the hassle

 

You can't add a 3 in section of tubing after the hf manifold. Your oil return wont work at all. You need an adapter plate.