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looking on rebuilding my rzr, just looking on what type piston to use...high compression or just the stock compression piston....i am kinda leaning toward the big bore kit but wondering if i would have to use any other add ons to the kit to get it to perform right???? and is the big bore kit worth the money and if any noticeable power gains with it for those guys who have one
 

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no replacement for displacement!
 

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Take a look at the dyno pull from a stock in the red and the big bore 850 in blue, you would need a better exhaust like Muzzy or yoshimuira we have tested both and they provide good numbers, also a fuel controller & spark unit like dynatek but in order to gain this type of power it costs! but at least we show you the results and this is at the Wheels, the Crank horsepower is at 80+ here is the link for the dyno if you need any thing send an email
Dyno page and Q&A Big Bore
 
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