I just bought an Autotune with a PC-V. Dynojet recommend putting the O2 sensor in front of the cat, but this is not possible as the system on the ZX10 is 4-2-cat-1 (2 separate cats).
Anyone have any insight on:
1. Gutting the cats, putting the sensor after the 2-1 union.
2. Not gutting the cats, putting the sensor after the 2-1 union.
3. Putting the sensor in front of the cat on only two cylinders.
I think I am going with option 1 at the moment, but am open to input. I would also like any recommendations on who might be a good choice to fab in some new tubes (thinking of just replacing section of exhaust where the cats are).