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what do the exaust valves accually do? i`ve had people ask how i like the apv, but i don`t know what it does that makes it better than the older sleds that don`t have them.
 

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Hey greensaysitall

A power valved motor lets the engine maker run a higher exhaust port height than a non-valved motor. A high exhaust port will make more top RPM horsepower, but it will lack bottom end torque. With the power valve in the mix they can effectively lower your port height for bottom end grunt ,then raise them up out of the port when the RPM's are higher and make more power.

You get the best of both worlds

Hope this helped

03 ZR900
 

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if the 00 does not have apv's and yours does then it will have better all around power...low end mid and top...
 
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