- cutting loose perforated pipes inside the original muffler
- bigger jet size
- aftermarket air filter
- mod your intake and exhaust port
- aftermarket CDI (this one probably not sold in US market but its plenty in my country coz its originally indonesian product)
- FCR carb
- last one is....go up displacement (bore-up / stroke-up / do both ways)
i did all of step above few years ago....except mod to bigger displacement
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Last edited by celesboy1; 07-13-2015 at 02:26 PM.
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