Exaughst help

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Apr 23, 2020 | 08:55 PM

Phoenix.x

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Exaughst help

So I'm new to this whole Honda ordeal and project cars in general but I got a 2010 Civic Si. I bought a new exaughst for it because the one I bought it with is awful, won't even start, but it doesn't have a catalytic converter just a resonator so I'm wondering where I should place the downstream o2 sensor so it's not reading the same as the first and throwing a code? I would assume after the resonator but like I said this is my first project by myself so I'm not completely sure. Also the pic is the idiot owner before me cut the port for the second o2 so it's hard wired in currently and I am probably gonna do the same again or find a port off a parts Civic and wire that in. Is that going to effect anything
if I do either of those? I'm really not trying to pay for hondata or a tune yet to just turn the sensor off not do I really wanna turn it off as I still have eCheck where I live. As long as I pass that that's all I care about so help lol !!