Description
i have a after market exhaust that was on a 250cc i slightly modified so it can fit on a 650cc, i installed it and it sounds really good. i want to know, is there something that can happen because the exhaust is made for a 250cc ?

Explanation & Answer

Thank you for the opportunity to help you with your question!
there is no critical effect to your 250cc engine because you replace it by high volume exhaust, if you replace exhaust by low volume exhaust it can damage to your engine....
