9 Strength Alloy Steel Silver or Black Zinc Plated Bolts

Hand-tighten studs into the block

and they have proven to be a top performer in both street and racing Subaru EJ18 / EJ22 / EJ257 WRX STI engines

00mm Exhaust   Sport  268° Intake / 267° Exhaust   11

BMW N55 Head Gasket & Head Stud Kit Head Stud Kit:High Boost Kit - Custom Age 625+ 9 Strength Alloy Steel SilverOEM Head Gasket (BMW N55) Genuine BMW head gasket for N55 engines (Part #11127599212). Proven reliable in high horsepower and high boost applications. For engines exceeding 800+ horsepower, O ringing the cylinder head or block is required. Cometic MLX Head Gasket (BMW N55) A direct replacement for BMW part numbers 11127599212, 11127599213, 11127849620, and 11127849621, designed for N55B30 turbocharged inline six engines. Constructed with multiple