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So I guess now the question is would I see any performance difference between a "Stage 1" and a "Stage 2" Big sucker?
Thanks for the help.
Not much.

There was only about 2 HP difference on the dyno between my Zipper's Max Flo air filter, and running with no filter at all on my bike.

http://www.zippersperformance.com/p...rs/maxflow-hiflow/maxflow-stage1-upgrade.html

So the difference between Stage 1 and Stage 2 would be less than that.... These aren't restrictive enough to cause much of any HP loss.
 
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