So i'm putting on my RB header/presilencer, and I was wondering do both items need to be taken off when i put the header on? I don't have a block off plate ATM and was wanting to make sure everything would be fine if i left em on. thanks.

 

you should just be able to leave them where they are for now. if you need to pass emmissions then you'll need them (like me). if you have no emmissions laws in SC then block them off.

the air pipe that used to go to your cat has a one way / check valve in it so the air pump will continue to think that it's pumping air to the cat, however it will now just be pumping into the atmo. wire the pipe up and out of the way and you're done.

keep in mind that this is really not the right way to go about this but will do for now. i take no responsability in your actions i only offer a recommendation.

TR