Do I need ARP head bolts for a 50trim upgrade.

[Shane@DBPerformance]

$110 is a good price for the 7-bolt ARP head studs, they cost a lot more than the 6-bolt versions. You don't need a different head gasket to run that much boost, the stock headgasket will hold 30+psi as long as you don't detonate too much. The 7-bolt head bolts are not as thick as the 6-bolt, so putting in ARPs are a good safety measure if your trying to run high boost.