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Discussion Starter #1
$45 shipped
These are the 500 RPM springs. Not the 1000 RPM Springs.
Brand new.

Raises the engagement/stall of the clutches for a hard-hitting competition style clutch.
Great for mud racing, competition pulls, drag racing or aggressive trail riding
Harder hole shot for off-the-line advantage
Doesn't effect top speed
 

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Discussion Starter #3
Yes. I have a 2012 550. Same engine just bigger bore. No part number. But EPI can confirm for you that they work with both engines and from 2007+.
 
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