Thanks man.It crossed my mind but I was thinking more to use some how water ,cos it's easy to work with copper,it's easy to solder it ,but I don't think it's really necessary.My car runs very well at 10 psi,but I really need a bigger turbo ,this one it's to small,chocks my engine ,if with this one I can run 10psi ,I'm thinking that I'll be able to run maybe 1-2 more psi with a bigger one,the engine it's bone stock.