BStage 8 (8997) Exhaust Header Nut Kit ReviewbP PP Stage 8 (8997) Exhaust Header Nut Kit PGrade 8 bolts will not stretch when hotPDuplex nickel finish for a superior look and corrosion resistancePDouble Hex Head includes 316 inch recessed Allen Head for easy installationPRemovable and reusablePCan visually inspect - no need to put a wrench on to check tightnessP