Dinan's High Flow Intake System consists of an injection-molded replacement lid for the stock airbox designed to increase overall volume and accommodate a high flow filter element for optimum intake air-flow. The lid is manufactured using a special composite material, chosen specifically for its ability to resist power robbing under-hood heat. The lid also incorporates an O-ring, completely sealing the air box for maximum pressurization and further insulation against heat-soaking, optimizing performance under varying driving conditions.. The System also includes a secondary intake duct that scoops up additional cool, oxygen-rich air via the factory brake cooling duct, further improving performance as road speed increases.. Not compatible with SULEV cars. Stage 2 Engine Software recommended for optimum performance and drivability.. More Power: + 9 HP @ 6500 RPM, + 8 LB-FT @ 6500 RPM (coupled w/ engine software). Sealed system for maximum insulation from power robbing heat. Dinan High Flow Intake System - 2001-2006 BMW 325i. Additional secondary inlet for additional air flow. Dinan 01-06 BMW 325Ci E46 325 Airbox Kit. Enlarged filter element for optimum flow. Injection-Molded Composite - E46. E46 325 AIRBOX KIT NONM56 325. Flow Intake System. DIN AIK

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