Empi 43-4415 Aluminum Velocity Stacks For EMPI, Brosol And Solex Carburetors. Velocity Stacks Or "Air Horns" Are Designed To Optimize Maximize Air Flow Entering The Induction System. Velocity Stacks Also Aid In Fuel Stand-Off During Air Entry To The Engine.

Specs:
Height 3-1/2"
Overall Diameter 4-1/4"
Aluminum Material Satin Finish
Slip In Fit

Application:
40-44 EMPI, Brosol, Solex Carburetors (Non-Electric Choke Models)