Vibrant Aluminium Bellmouth Velocity Stacks / Turbo Inlet

Vibrant Performance bellmouth-style velocity stacks allow for less turbulent air to enter your intake, resulting in air flow improvements and, ultimately, torque and horsepower gains.

These are common both on naturally aspirated and turbocharged air intake systems.

2.5″, 3″ and 3.5″ inlet bellmouths feature a 6″ outlet diameter. These perfectly suit the 6″ Vibrant Classic Air Filters for Bellmouth Velocity Stacks
4″ inlet bellmouths feature a 7″ outlet diameter. This perfectly suit the 7″ Vibrant Classic Air Filters for Bellmouth Velocity Stacks
5″ inlet bellmouths feature a 8-3/4″ outlet diameter.