July 11, 2011 The YZ450F GYTR Power Tuner: Are you taking advantage of it? Edit Delete Tags Autopost The YZ450F GYTR Power Tuner: Are you taking advantage of it? read moreSource: http://www.directmotocross.com/news/breaking/2011/07/yz450f-gytr-power-tuner-are-you-taking-advantage-itBobby Moore Blair Morgan Gaylon Mosier