The Supertech black-nitrided exhaust valve set for Honda B18A/B18B applications is supplied as a +0.5mm oversize set of eight. The listing specifies the black nitrided finish and the +0.5mm oversize for these B18A/B18B engines, with material finish, oversize and application details provided to confirm fitment for cylinder head servicing.
Supertech Honda B18A/B18B Black Nitrided Exhaust Valve - +0.5mm Oversize - Set of 8