Vacuum and boost reference on a 1:1 ratio

PFR5-5630-10 fits cars with standard or aftermarket rear shock absorber with a 10mm pin

00mm Exhaust   Hot Street  299° Intake / 292° Exhaust   13

and turbocharged setups

Turbo sizing 72mm+ on high boost

B58 Oversized Head Stud Installation Service E64 M6 Vacuum and boost reference onFor high performance BMW Toyota B58 engines pushing extreme power, head gasket failures and cylinder head cracks can become an issue. If your engine has experienced these problems, our B58 Oversized Head Stud Installation Service may be the solution. Designed for engines running our special oversized B58 head studs with ARP insert washers, this service is ideal for restoring and strengthening engines subjected to intense boost levels and power output.