{"product_id":"sport-headers","title":"Sport Headers","description":"The Active Autowerke BMW Sport Headers (11-009) are engineered to replace the restrictive factory headers found on BMW E46 325i and 330i models, aiming to significantly enhance exhaust flow and overall performance.\n\nStock E46 headers often incorporate integrated catalysts positioned close to the cylinder head. This design can generate excessive heat and impede exhaust gas flow by consolidating cylinders into single pipes, creating a bottleneck that limits the engine's power output. These performance headers address these limitations by removing the stock catalysts.\n\nConstructed from 100% polished 304 stainless steel, these headers are built for durability and superior flow characteristics. They have undergone dyno testing to verify performance improvements and can be integrated with Active Autowerke's E46 rear exhaust system for further horsepower enhancements.\n\nKey features include optimized exhaust flow, suitability for both naturally aspirated and forced induction applications, and direct bolt-on fitment to the factory exhaust system. The package includes all necessary mounting hardware and comes with a two-year warranty and complimentary technical support.\n\nImportant notes for installation and use: These headers are designed exclusively for off-road and racing applications. Installation will trigger a check engine light unless an Active Autowerke software upgrade is applied. They are not compatible with right-hand drive (RHD) vehicles.","brand":"Active","offers":[{"title":"Default Title","offer_id":52686761951544,"sku":"11-009","price":721.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660671554.jpg?v=1784876433","url":"https:\/\/store.motormia.co\/products\/sport-headers","provider":"MOTORMIA","version":"1.0","type":"link"}