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Lancer Evolution VII
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ARP "2000" Head Stud Kit - Mitsubishi EVO IV - IX (7-BOLT 4G63/64)
ARP studs are thread rolled after heat-treat, which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat (a very common industry practice). It costs a lot more to do it this way, because it's tough on tooling, but the results are well worth the extra effort.
Includes:
Set of 10 Studs, Washers & Nuts;
ARP Assembly lube included.
We recommend these head studs as cheap insurance for anyone running 25-30psi boost.