Well Im installing my RB header, but Im not using the silencer, Im keeping my Bonez cat. It says that you are supposed to block the ACV and remove airpump, but since Im keeping a cat I will need to keep these things right?? I just wanna make sure while I still have everything off.

 

Keep everything; just throw on the header, and fit the cat.

 

Thanks, thats what I thought, just needed to make sure.