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Discussion Starter · #1 ·
I seen a thread on here about an aftermarket crank pulley breaking during a 1-3rd and that the stock crank pulley is fine. Considering his car was 600+.. Would an alumminum crank pulley be bad for a 2008 GTS?
 

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Discussion Starter · #3 ·
I heard that switching to alumminum can free up some hp.. Apparently the stock crank pulley is around 4lbs.. And the alumminum one is .5lbs.. Allowing for a more free spin? Seems like it makes sense to me but i dont want problems lol
 
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