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Question: How much difference does a sport exhaust make to a moped (50cc) without derestricting it?

(Posted by: Daniel G on 2010-02-24 10:25:23)

My bike is a Peugeot speed fight 2 if this helps. Cheers, and any idea of how much a sport exhaust costs?

Posted by: Peter L on 2010-02-27, 03:15:59

James is right despite the number of people who dont like the answer. Slower almost certainly and certainly noisier. Maybe it is worth explaining why it would be slower.... A highly tuned exhaust will give you more power at peak revs. However the bike will be much less powerful at modrate to low revs, so it will bog down a lot and if you are riding anywhere but a track it will be slower than a standard one. That is for a good exhaust that boosts the power. Many look the part and are noisy but actually dont boost the power in any significant way and generally lose you midrange torque without the dubious benefit of higher power at peak revs. Wait till you can get a bigger bike and do that. No substitute for cubes.

Posted by: ken k on 2010-02-24, 10:31:49

That engine is too tiny to show much/ less than 1 cubic inch/ factory is getting as much as it can without blowing it up

Posted by: James on 2010-02-24, 10:34:37

None. It will be louder, and possibly slower.