3.3TT Secondary OPF sensor

[henrywcy]

Hi guys, I've replaced the catback with RES. It sounds amazing and the high pitch makes the whole thing soo aggressive.

And now i would like to change the primary and secondary too but mine is 2020 version and the there are opf sensors on the secondary.

Secondary from all brands don't have the mounting place for the sensor so does it mean that i need to modify it locally?

And i heard from people that it requires turning on the ECU.
Anyone has experience for downpipe on post 2020 car?

 

[oddball]

Replacing the catalytic converters requires an ECU tune or more invasive piggyback integration.

I would be concerned about the current off-the-shelf pipes fitting if there has been that big of a change. You would be best off talking to the manufacturers to see if they've confirmed it'll fit. If your flag is right and you're in Hong Kong, then those cars might have a different exhaust system than the US version. You might be better off looking at the Korean manufacturers.

Regardless, I would expect an exhaust shop would be able to build a custom exhaust that would be cheaper and fit better than off-the-shelf stuff.