Just wondering what these tubes are where they go and if I can just plug them or vent them or what?

Thanks

 

That is the split air tube, it's for use with an airpump, which pumps air down to the main catalytic converter. if you have removed the main cat (installed midpipe) and your airpump, the split air tube is also not needed. You can remove it, but you need a block off plate.

 

thank you so much for not flaming the living **** out of me

 

 

Hey, it's mother's day, I was feeling mellow