Need help! I try to install a Yoshimura R55 full system on my ZX-14R 2013, but it is to short by around one inch! The Yoshimura is for 2012 model, but the wheel base between 2013 and 2012, and think, is the same?!?! All the bracket on the back if fit well, the header on the motor also fit well.... but they are too short to really connect in the middle. Any idea?