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Any body know what they did to make the 800 ho for 2003. What h.p. is there
 

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higher compression and different porting,ski-doo claims power is improved by 7%.lets see, 138 hp x 1.07=146hp.I would rather wait and see what the dyno says.
 

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they are also using a double reed set-up (similar to V-Force) to help with the intake.  Having tried the Summit HO I can tell you this unit is strong!
 
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