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Nygmatic
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2,683 Posts
did you not read the whole FAQ?

"The only correct way to determine what side a directional rotor goes on is the internal vane direction."

first of all unless you have a Big Brake Kit, then you dont have directional vanes. therefore it DOESNT MATTER!

with non directional vanes there are different schools of thought on the slotted. on xdrilled, it all up to personal preference. doesnt make a difference one way or another.
 
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