R21PB GS Storm motor
04-25-2007, 03:51 PM
#1
R21PB GS Storm motor
As anyone ever bought the GS Racing R21PB motor. I installed it in my buggy at the end of the season last year. Seems a bit though to tune. I am also using the the stock (from my Storm RTR) pipe. Should I upgrade to a JP-1 or -2?
What improvement would it give me?
What improvement would it give me?
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