Hey Guys! I'm looking to buy a CBR300R from someone but they claim to have changed the exhaust to Yoshimura. I am worried that it would overpower the catalyst and burn out the cylinders - hence meaning I would need a power commander installed in the future not to ruin the engine as it is very torquey!. Is this the case, or can the CBR300R handle it? Maybe anyone has installed it on their bikes?