Exhaust Choice for an exhaust

[Jackson_Carnecchia]

Hey there, so I’m looking for a boost in speed and acceleration. I can’t decide wich exhaust would be better for my standard 49cc engine. Would the Bikeberry F2 thrust be better than a mz65 clone ?

 

[Chainlube]

How much noise do you want to make?

 

[Jackson_Carnecchia]

How much noise do you want to make?

Louder than taking the baffle of a standard pipe.

 

[snip]

I'd say don't go with the f2, there notorious for having awful welds and overall just being of poor quality, I know a guy whose f2 came with holes in the welds!
on the other hand, you really can't go wrong with those expansion chambers and the one you showed is a personal favorite of mine. good quality, nice performance, and a pretty decent sound.

 

[HumanPerson]

Best bang for my buck? --long read--

Oh man. Thats a killer ride. Ill be ordering that pipe asap. Got it in my bookmarks. Think ill be able to get away with using mig? BTW Dont mind my back and forth with that other guy. Its like a phone scammer. If you waste their time, they cant ruin anyone elses day until they realise youre...

motoredbikes.com

 

[YetiWoodz]

The pipes currently made for motorized bikes aren't real expansion chambers unfortunately. They only increase performance because there's no restriction/baffle.

The one in the link above is a great option, it will add a lot of power, but you or a friend will need to modify the header which requires welding.

I'd say stick with the stock kit muffler for now until you find a way to do that. Another word of advice, don't buy a boost bottle, they don't work, and stick with the carb you got. A bigger carb and reed setup works better once you have an expansion chamber.

A steel wall cylinder on ebay and a cooling head are good mods that don't need an expansion chamber.