Hi guys, i am replacing the entire exhaust system on my 57 chevy. I am going with Shortie style headers, and pypes street pro exhaust kit. The pypes kit begins at the crossmember, and i was wondering if anyone would know what the angle would be from the headers to the exhaust pipe? I know i need a piece of pipe to go there, but i have no idea what angle size. I am trying to order everything at once so i can get it done in one weekend. Thank