Vibrant Bellmouth Velocity Stack Aluminum (3in Neck O.D. 6in Bellmouth O.D.) Chevrolet C20 Suburban Silverado 1977 GMC Sierra 1500 Classic SLE

GMC Sierra 1500 Classic SLE 2007

PLYMOUTH 1992

and "ICON-optimized" dimensions

GMC G25 Rally 1978

Ford Expedition Limited 2006

Vibrant Bellmouth Velocity Stack Aluminum (3in Neck O.D. 6in Bellmouth O.D.) Chevrolet C20 Suburban Silverado 1977 GMC Sierra 1500 Classic SLEVibrant Performance aluminum bellmouth velocity stacks are constructed from spun, 1 8 thick T6061 aluminum and are designed with the turbo fabricator in mind. Vibrant Performance bellmouth velocity stacks are ideal for all motor and forced induction race applications. They allow for less turbulent air to enter your engine and reduces turbo lag which cumulates in dramatic airflow improvements resulting in significant torque and horsepower gains. They