Brian Crower Inconel exhaust valves, 27mm with +1mm oversize specification, are produced for Yamaha YXZ and related high-demand applications. Specified as Inconel exhaust valves and sized at 27mm (+1mm), they are offered for markets requiring oversize exhaust valves for the named vehicle platforms and track-focused engine builds where that valve sizing is specified.
Brian Crower Valves - 27mm (+1mm) Inconel Exhaust - Yamaha YXZ / Tetron XX