Exactly like stock, but with 289% of cross sectional area for air flow to engine intake.
Fits to S50, S52 and S54 Z3M Roadsters and Coupes, and every other Z3 with Z3M bumper. Use in conjunction with Erik Eriksson Design Z3 / Z3M chassis specific upper engine room parts: For example 4" outlet vent, 4" CSL horn or 4" CSL Snorkel.
