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Old 04-15-2021, 11:54 AM   #1
MeatHammer   MeatHammer is offline
 
Join Date: Apr 2020
Posts: 67
166fmm 6 speed engine

I have been searching for an extra 165fmm engine for my x22R to do performance mods to and then swap it out for the stock one. I keep coming across the 166fmm 6 speed engine that says it has better performance. Does anyone know anything about the 166fmm? Is it bigger, faster, better gear ratio etc?


 
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