{"product_id":"gen-2-signature-rear-exhaust-system","title":"Gen 2 Signature Rear Exhaust System","description":"The Active Autowerke Gen 2 Signature Rear Exhaust is engineered to enhance the performance and sound of BMW 325i, 330i, and 328i E9X N52 models.\n\nConstructed from premium 100% brushed 304 stainless steel, this exhaust system boasts 3\" mandrel-bent piping for optimal exhaust flow and a straight-through muffler design. It incorporates Active Autowerke's Noise Cancellation Chamber (NCC) technology to effectively minimize exhaust drone while producing a sporty yet mellow tone. The system is finished with dual 80mm staggered signature tips.\n\nThis performance upgrade offers a significant increase in exhaust flow, estimated at 35% to 40% over the stock BMW 328i exhaust, which translates to substantial horsepower and torque gains by minimizing back pressure. Additionally, the system provides a weight savings of 14lbs compared to the factory exhaust, further contributing to improved vehicle dynamics.\n\nInstallation involves cutting the factory pipe, with dimensions and cutting points detailed in the included illustrated instruction manual. While designed to use existing factory mounts and hardware, fitment may require welding for some XI (4WD) and Station Wagon models due to variations in factory pipe shape (round vs. oblong).","brand":"Active","offers":[{"title":"Default Title","offer_id":52686763131192,"sku":"AA-ExhE9x328-G2-KIT","price":759.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/661162933.webp?v=1784876448","url":"https:\/\/store.motormia.co\/products\/gen-2-signature-rear-exhaust-system","provider":"MOTORMIA","version":"1.0","type":"link"}