I just need some expert advice from you guys. I am thinking about purchasing a Tsudo header + S pipe for my XB2. My concern was would I need a CEL eliminator so it does't throw a code. I asked the tech if I would need to order one and they told me no that is has one built in. I know the Weapon R one does require a CEL eliminator. I am just curious if this is the correct information? Also, should I just spend the extra money and go for the Weapon R set up? It seems it has been around longer than the Tsudo and a lot of you guys run the Weapon R set up. Lastly, is there anything else I would need? For example an O2 extension cable? Thanks for the help.