Hi Tobin, very significant gains and cooler running by going to the GT Y-pipe and PC-V/AT. The 300 dual band allows a dynamic map for each cylinder, which means even better smoothness and throttle response. You'll have to choose if the cost difference is worth it to you, as you'll have to add two additional 02-sensor bungs in the headers up near the oil cooler. I can supply them if you'd like. Write me direct email for more info; Todd at GuzziTech.comHi all, I'd like to sort the fueling with the PC-V/AT/ECU Re-Flash Tool package on my bike (Breva 1100). I've read through this thread, but I can't find where this has been discussed:
If I get rid of the catalytic converter in favour of a GT-Rx crossover/y-pipe, is there any advantage to going to the double O2 sensor version? And then the AT300 instead of the 200? I feel like having a sensor for each cylinder is better? Surely no matter how well synchronized, the two cylinders won't be running *exactly* the same...
Thanks in advance!