well im waiting to get my racing beat header and i was wondering what do i do with the air hose at the catalic converter thats from the air pump. I also am getting the presilencer. My car is a 88 rx7 non turbo gxl 5 speed manual. Thanks, Noel

 

On an 88 you will need to hook up the line that was going from the cat to the RB pre-silencer, that bolts up to the header. You need that line working and hooked up to run your 5th/6th ports.