BMW 325i Performance Air Intake - Dinan - High Flow - 01-06. A precision-engineered intake upgrade for E46 325i models, designed to improve intake efficiency and throttle response while maintaining factory-like fitment.

An injection-molded replacement lid for the stock airbox uses a heat-resistant composite to help keep intake temps down. An integrated O-ring fully seals the airbox for better pressurization and reduced heat soak. A larger high-flow filter plus a secondary intake that draws cool air from the factory brake-duct path increase airflow as road speed rises. Fits 2001-2006 BMW 325i (E46); not compatible with SULEV/M56 models. Dinan Stage 2 Engine Software is recommended; when paired, gains up to +9 hp and +8 lb-ft at 6500 rpm.

Features

• Injection-molded composite airbox lid
• O-ring sealed for full airbox pressurization
• Enlarged high-flow filter element
• Secondary inlet via factory brake cooling duct
• Sealed design to help limit heat soak

Have questions or want expert guidance? Call our Austin shop at 512-982-9393 (TX) or our Los Angeles area shop at 562-981-6800 (CA). We offer professional installation and customization at both locations. Considering multiple items? Contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov