Hello, picked up these FTP pipes to replace the stock ones. I read a few post regarding these pipes that I needed to reuse the stock o-rings? But I think the FTP already has them on. I attached a pic....they're the green/brown ones. Do I still need the o-rings from the oem pipes?

green and brown O-rings?

 

I talked to FTP several months back about their pipes and there's two versions - v1 and the updated v2. It looks like you have v2 as the main distinction between the two was that FTP started making their own seals and thus the OEM ones would not need to be reused.

 

Good to know, thanks El-Grunto