I currently have these CRG RC2 clutch and brake levers installed on mine. So far I've been enjoying them. The quality is very nice. No way I could've kept the stock. They just didn't feel right to me. The CRG come in both shorty and standard. I would recommend them.
Clutch - http://www.revzilla.com/motorcycle/crg-rc2-clutch-lever-yamaha-r3-2015-2016
Brake - http://www.revzilla.com/motorcycle/crg-rc2-brake-lever-yamaha-r3-2015-2016
Clutch - http://www.revzilla.com/motorcycle/crg-rc2-clutch-lever-yamaha-r3-2015-2016
Brake - http://www.revzilla.com/motorcycle/crg-rc2-brake-lever-yamaha-r3-2015-2016