The Vibrant bellmouth velocity stack is spun from 1/8" (3mm) 6061 aluminum and intended for turbo fabricators and forced-induction race use. It promotes smoother intake flow to reduce turbulence and turbo lag, supporting airflow improvements that yield torque and horsepower gains. This version has a 3.5" inlet and a 6" bellmouth and is backed by a one-year limited warranty.
Vibrant Bellmouth Velocity Stack Aluminum (3.5in Neck O.D. 6in Bellmouth O.D.)