{"product_id":"performance-exhaust-header","title":"Performance Exhaust Header","description":"The Active Autowerke BMW N51\/N52 Performance Exhaust Header is engineered specifically for BMW chassis equipped with the N52 inline 6-cylinder engine, optimizing exhaust flow and enhancing power potential. It features a 100% 304 brushed stainless steel construction with mandrel-bent tubing for smooth, unrestricted flow.\n\nDyno-proven gains of 20+ WHP over the stock manifold are reported, with improvements to the power and torque curves across the RPM range. The header is available for Coupe, Convertible, and Sedan BMW models, and has been test-fitted on an N52 header jig for precise fitment. It includes all necessary gaskets for installation.\n\nGuaranteed fitment is specified for BMW E9X 328i models with the N52 engine. The header features robust exhaust flanges with recessed mounting holes to facilitate straightforward installation, allowing enthusiasts to upgrade their BMW N52 engine efficiently. A two-year limited warranty is included.","brand":"Active","offers":[{"title":"Default Title","offer_id":52686763557176,"sku":"11-022","price":721.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/660671550.webp?v=1784876453","url":"https:\/\/store.motormia.co\/products\/performance-exhaust-header","provider":"MOTORMIA","version":"1.0","type":"link"}