Even though my bike is still newish and still under warranty, I choose to do my own work. It was about time to service the air filter and replace the plugs so while I had the air box off it was an opportune time to rectify the factory Engineers emissions and noise restraints. First thing off was the ugly charcoal cannister on the L side - this was offed the first few days of ownership. With the airbox out, I was free to: Parallel up the vacuum signal from the throttle bodies Remove/plug the PAIR valve as I have an aftermarket exhaust and no longer need it nor am I too keen on the new popping through the pipe noise Remove the sub-throttle plates Remove the air inlet baffles in the airbox Total cost = 80 B for the PAIR plugs and a T fitting for the vacuum lines. I recycled the 4mm vacuum hose from the now redundant charcoal box to use on the twined vacuum lines Initial riding impression is that it is much smoother at slow running and will idle along without snatching or jerking. It pulls from idle without problems and this alone is worth the mod. There is a wonderful boy racer howl from the air intake, and no exhaust popping under deceleration ECU is still stock, but I think it can cope with these changes. If anything, more air at full chat is a good thing as they are too rich at high revs with the stock ECU, and this is where the inlet baffles enter the equation. It remains to be seen if it is now even more too lean at idle without the inlet baffles. Next mod will be a PC-V using an autotune sensor as there is no dyno here, nor anyone that can run one. Now off to give it a good spanking on the Samoung loop before going to the rocket festival in Yasothon with The Ambassador in the morning An easy mod to do, however not sure if Kawi would approve, so maybe get Tim to do it for you if you are not comfortable mucking around in there yourself. I was a bit suprised at the recommended iridium plug replacement interval of 7500 Km. Surely this sort of plug should go far longer, and mine looked fine - not surprising with FI. I decided to leave it in until the next service interval and re-evaluate it at that time. Perhaps this is a revenue centre for Kawi at a cheeky at 640 B for a plug?