The Supertech sodium-filled Inconel exhaust valve set for BMW B48/B58 is specified at 28.5 x 5.95 x 100.1 mm with a dished head and supplied as a set of six. These sodium-filled Inconel valves are offered as matched exhaust replacements for B48 and B58 applications where a six-valve set is required for head service or repair.
Supertech BMW B48/B58 28.5x5.95x 100.1mm Sodium Filled Inconel Exh Valve - Set of 6 (Req KPR-6S 7)