Will this fit my china girl motorized bicycle?

Re: Will this fit my china girl?

I have a CAG exhaust on mine, Not worth it after what you have to do to get it to fit.
Get the SBP exp chamber, the CAG exhaust is being penny wise and pound foolish. You'll still need to buy pipe fittings and silicone tubing to get it to fit, and even AFTER that, the expansion chamber shape and header length are for a motor with a shorter stroke, reeds, vastly different timing and a much higher RPM power band. your motor won't feel the increase until it nearly redlines, a dangerous mix.
 
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