My son is installing the Evil swing arm +4" to the Great White. As well, velocity stacks, plugs, rear brake delete "I KNOW". shift light, new sprockets and chain at 20,000 miles. Doing very well for his first bike. Just FYI, my other son has "RUBY" the red 2020 busa. He has had it tuned by Ninja Tech here local in Colorado and it was expensive and was not quite as fast as the Great White. So, he sent it off to EJR Performance for the second tune. Not bashing anyone but would like to say... a lot of money in those two tunes and Rob @ Boosted is the man! Very happy with mine and Great White's flash.