To weld the y-pipe and over the axle pipe?
) 2 3/4 the flange is for 2.5-3.0. The leak is not there at idle but as soon as there is some back pressure I know its leaking. My guess is that im between 2:1 and 3:1 pressure ratio. so thats 16 -24 psi in the exhaust. This leak is causing a huge increase in rpm for full boost!!!
I'm really thinking of having it welded but I aslo don't want to. What else can I do? 





