I want to tune my drd racing(2011) to 80cc this summer .
I think mhr team is the best option for cylinder kit .
What exhaust is the best for this kit ? I can't spend 250+ euros for the exhaust only

Plz give me give me your advice about the kit and the exhaust and tell me if I should change something else in order to make it 80cc .
I don't like under engine exhausts !!
PS: I am from Greece so if you can answer in English I'll be happy
