Dinan High Flow Intake System - 2003-2005 BMW Z4 - Injection-Molded

This seemingly simple yet very effective approach to the business of improved intake efficiency consists of a replacement lid for the stock airbox designed to increase overall volume and accommodate a high flow filter element. The lid is molded from a special composite material, chosen for its ability to resist power robbing under-hood heat. The lid also provides for a completely sealed air box, maximizing pressurization for optimum performance. | The addition of the Ram Air Intake Duct maximizes intake system efficiency for even greater improvements in overall performance.

Not compatible with the Z4 3.0i (E85) from 2006-2008. Stage 2 Engine Software recommended for optimum performance and drivability

• More Power: + 8 HP @ 6500 RPM, + 7 LB-FT @ 6500 RPM (coupled w/ engine software)
• Sealed system for maximum insulation from power robbing heat
• Additional ram air intake duct for additional air flow
• Enlarged filter element for optimum flow