is it ok to have a free flow exhaust on my Chinese 100cc or will it damage my engine someone said it would break my piston weight
And generate a lot of noise....
It will not damage ur engine........just there will be high db of noise and low end torque will be compromised and high end will increase a little bit........
not worth it. free flow is only good, if you have long empty high speed roads.
for normal traffic, you will cry. you will loose low end torque on low rpms and it will make traffic driving very annoying