Hello,

I was just about to purchase my FI resonated cats, however, I ran into the option where it is asking me if I want extra wide 02 bungs.

What are the benefits to that? I tried doing some research and cant find anything useful. Just all about dyno runs.

Any power gains?
CEL lights?

Thanks,

Dylan

 

Only difference is if you get your car tuned on a dyno, the cats have a bigger port for a wideband O2 sensor. You would only use that while tuning on a dyno.