Hello Glenn!
So you're thinking something like this, right?
Well the way I did it without really thinking much about it... I just bent them. They migh have cracked a little and you could probably see them turning white, but if you're careful to keep the bend gradual it's going to be OK. It might be helpful to heat the parts a little using hot water but I didn't do it, I just did it on a hot day, that's all.
Good luck with your quad and have a nice day
Paweł