I upgraded my heads, and do not have smog tubes. I do want to use the air pump still to keep my cats healthy (bbk high flows). Id love to get an offroad pipe but unfortunetly I live in MA and both the cops and the emissions tests are strict. I want to run the air pump without diverter valves straight to the pipe that leads to the cats. (running air at all times) A- will this be practical for the cats (will it help/hurt) B- Will I need to cap off the lines previously going to the diverters. I hope this will be an easy "mod" and I can clean up my engine bay from emissions clutter while saving my cats in the process. THANKS GUYS
My new heads didn't have smog tubes either. I ran a piece of heater hose from the smog pump air bypass valve to the air tube that goes to the h-pipe. I only had to plug one vacuum line, the line that went to the air diverter valve (the one in the middle)
I have seen people on here before ask which lines go where. So I created these. Hope they help someone. Stock mine