Overview Reviews Product Description Brian Crower Valves - 37.8mm (STD) Intake - Polaris XP1000 / XPTurbo Product Videos Custom Field MPN BC3800 Product Reviews Write a Review Write a Review × Brian Crower Brian Crower Valves - 37.8mm (STD) Intake - Polaris XP1000 / XPTurbo - BC3800 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *