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  1. D

    Cheap expansion chamber available in Australia

    Hi, I'm looking for an expansion chamber for my 49cc china kit. At the moment I have the eBay banana pipe but I'm looking for something more for a decent price available in Australia. Side note, I have done a few things to my bike and I am in the process of doing more. I have done the; Banana...
  2. inspectorcritic

    For those who want more power and speed from their machines.

    But I talk to an expert on exhaust for some like me who lives above 4000 feet use a gradual expansion exhaust, yepp thats what the an said.

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