Skunk2 downpipe install

[JoseCoronaMX]

Hey dudes

I'm installing skunk2 downpipe on my 9th civic SI, And now i'm wondering what's is this **** for? It's necessary to install it with it or i can just put de O2 sensor directly?

I'm installing full race catback too And in a few days hondata flashpro.

 

[webby]

I'm guessing that's the defouler for the O2 sensor. I've not seen the skunk2, but that is my guess.

 

[W3R0]

I have the FR exhaust and mine didnt come with that. Im guessing you dont need it with FP? Just wait fot FP and install all togeher

 

[jhuerto23]

If you're in Cali, remove it and put your 02 sensor on the DP. If you're in a state that doesn't require smog then keep it on (Defouler).

 

[Dennis Rockholt]

If you dont have flashpro, use it to defoul the ECU otherwise just plug both O2 sensors in and leave it off