I was giving the brake callipers and pads a clean-up before putting the bike away until spring. I removed the exhaust (which comes off easily) to get easy access to the caliper. WOW, that can is super heavy. After market can's claim a 2kg savings. I am thinking of going down this route but would like to know from anyone who has changed theirs if there was any detriment to the way the bike's engine behaved. And did any dash lights come on .