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apex motors

red

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Nov 27, 2007
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Alberta
Think it has to do with the EXUP, they put a valve in the exhaust system. Helps with blow back, its when the valves over lap. Other wise I don't know of anything else other than likely has a few up dates here & there.
 

kinger9

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Jan 1, 2009
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www.piergenius.com
There is some evidence that they changed the internals at least the rings and pistons as well. A few pioneers have made a claim that the newer one are weaker then the older ones. Its too early to say if that is a correct statement. Stock.. reliability every bit as good, when boosted there isn't as large of a sample size yet to see if they are as bullet proof as the 06-10 motors.
 
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