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JE or Wiseco sells off-the-shelf pistons at 13.5:1. The Wisecos are a little lighter and the domes are a little prettier IMHO. Also a bit cheaper - available at Cycle Concepts, Schnitz Racing, etc.
 

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Speed Freak
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Kawi sells 14.3:1 pistons but at liek 450 a piece I think.... JE or Wiesco can custom make pistons to w/e compression you would like as well.... Also I heard you can get CP pistons now....
 

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I got a set of 1078cc 13.5:1 JE pistons. I'd be careful getting up in the 14's. Reliability comes into question running that kind of compression.
 

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Also I'd say get the JE pistons if possible. I've heard mixed opinion about the Seize-CO pistons. But that's what I've heard. Never heard any bad things about JE. I've used JE in my Audi and running a set in my 600RR.
 
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