{"product_id":"n55-downpipe-upgrade","title":"N55 Downpipe Upgrade","description":"The VRSF N55 Downpipe Upgrade is engineered to enhance the performance of your N55-powered BMW, offering a significant improvement over the stock exhaust system. This downpipe is highlighted as the most cost-effective modification for models such as the 2012-2018 BMW M135i, M235i, M2, 335i, and 435i.\n\nConstructed from hand-crafted, tig-welded 304-grade stainless steel, the downpipe features smooth radius bends designed to minimize turbulence and maximize flow. The flanges are precision-machined from billet 304-grade stainless steel. A 200-cell high-flow catalytic converter option is available. With a tune, this downpipe is reported to deliver gains of 20-25 horsepower.\n\nInstallation notes indicate specific requirements based on production date and vehicle model. M135i and 335i models produced up to July 2013 require the 3.5-inch version, while models produced after that date, along with all M235i and 435i models, require the 4-inch version. It is advised to confirm the turbo wastegate location to ensure correct fitment. The product comes with a lifetime warranty, though the ceramic coating and catted versions have a 1-year warranty. Note that VRSF downpipes may trigger a catalyst code, potentially affecting emissions testing in certain states without appropriate tuning.","brand":"VRSF","offers":[{"title":"Default Title","offer_id":52664102125880,"sku":"10302020","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/686902252.jpg?v=1784333264","url":"https:\/\/store.motormia.co\/products\/n55-downpipe-upgrade","provider":"MOTORMIA","version":"1.0","type":"link"}