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12.14.2008, 04:04 PM
they have better lipos.... yours is a 20c 4000 (80amp) theirs are 25c 5000 (125amp) it makes a difference.... they run REALLy well with the 5000 25c and 23 tooth pinion, any more power with the stock tires and wheels and chassis setup and youll just be turning slower laps due to too much power.....
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