To ensure that all air that goes into engine is only ambient air cold and high velocity pressure laminar flow, a custom horn was developed. Customers have gotten really stellar dyno results in combination with my 4" Ramair bumper vents and this horn, even with stock S54 cams!
This horn fits to CSL, Haimus and Karbonius 4-bolt flange carbon fiber plenums for S54B32 engine. It fits at least into E46, E36 and Z3M but might be useful in many other chassis with S54 CSL engine swap and limited space. Always to be used in conjunction, and connected with 102mm / 4" hose to Erik Eriksson Design Chassis / Bumper Specific 102mm / 4" Ramair vents.
ASA version is 3D-printed to you from order. Carbon Fiber version is hand made pure carbon without lacquer. Carbon fiber lacquered has glossy automotive lacquer on top.
To ensure repeatable and representative professional quality I need to outsource some of the carbon & mold making parts making this very expensive to me too, hence the higher costs.
