Overview Reviews Product Description Brian Crower Valves - 29.2mm (STD) Exhaust - Polaris XP1000 / XPTurbo Product Videos Custom Field MPN BC3801 Product Reviews Write a Review Write a Review × Brian Crower Brian Crower Valves - 29.2mm (STD) Exhaust - Polaris XP1000 / XPTurbo - BC3801 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *