Vibrant Bellmouth Velocity Stack - Aluminum Vibrant Bellmouth Velocity Stack Aluminum. Available in: 3.5" O.D Neck by 6" O.D Bellmouth 4" O.D. Neck by 7" O.D Bellmouth 5" O.D. Neck by 8.75" O.D. Bellmouth MSRP: Was: Now: $47.99 - $78.99 Choose Options
