Okay so I have the eBay 3" exhaust, the supply kindly forgot to add the gaskets! So would a sheet metal gasket be okay for me to make myself for the turbo to downpipe? Second question is the square joint, would this also be a metal gasket? and finally the idiots who tried to stop my blowing previously decided not to replace the gasket for the turbo to manifold!! So time for some DIY! Any advice, measurements or what to use would be greatly appreciated