I totally agree, asked the service manager if they could tune my bike on the dyno, once I installed true duals, SE air cleaner and PCIII, he told me it would do no good, the PCIII was not tuneable and would revert back what ever map was in it when I purchased it. Emailed Keith at FuelMoto and got a map that makes my bike run great...

Joe

 

What plugs?
The sensors are in the bearings. I changed over to floating rotors and the ABS works fine. He has a 2011.
Check your sensor wires. Make sure they aren't crimped or haven't been yanked on.