You removed the cats in the g56 pipes before install? You were not shipped a new ECU? Then that would be a Stage 1 with complete headpipes, mufflers and bobbins for mounting. If that correct?
The G56 exhaust did not have cats. So, I'm now catless - but there is no inspection or testing requirement here for motorcycles.
No new ECU. I was wondering if one would be needed, but it is not.
Hunter