14mm head studs

May want to rephrase your question. I am assuming you want to know how much better 14mm's are than 12mm's?
 
Another question is what kind of build are u doing? Will it require the 14's? 625's are out now so are 14's even needed?
Brandon
 
just use 625 arp or h11 A1 12mm, they do a good job you really wouldn't even need those but u might as well get the better of the two 12mm studs
 
id say for less money you could go with 14s if you could drill and tap your self or know someone that can do it for pretty cheap
 
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