{"product_id":"b58-downpipe-upgrade-1","title":"B58 Downpipe Upgrade","description":"The VRSF B58 Downpipe Upgrade is engineered to significantly reduce back pressure by replacing the restrictive factory catalytic converter with either a track-limited racing option or a high-flow 200-cell race cat. This modification is presented as a substantial performance enhancement for B58-equipped BMWs, promising quicker turbo spool, a noticeable increase in power, and a more aggressive exhaust tone.\n\nConstructed from hand-crafted, TIG-welded 4.5\" SS304 grade stainless steel, this downpipe features a CNC 304 stainless steel flange for a smooth transition from the turbo to the mid-pipes. It is designed with smooth radius bends to minimize turbulence and maximize flow, and it fits both the stock cat-back and aftermarket cat-back exhaust systems. Options include a Heat Shield, Brushed Finish, or Cerakote High Temp Coating for the surface finish.\n\nThe downpipe offers a claimed power gain of 25-30hp when paired with a tune. VRSF provides a Lifetime Warranty for the race versions and a 1-year warranty for the high-flow catted versions. The product is compatible with a wide range of BMW models, including the M240i, 340i, 440i, 540i, 640i, 740i, and 840i variants, spanning model years from 2016 to 2022 (and up to 2024 for some models).","brand":"VRSF","offers":[{"title":"Default Title","offer_id":52664105566520,"sku":"10582010","price":279.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687538980.jpg?v=1784333325","url":"https:\/\/store.motormia.co\/products\/b58-downpipe-upgrade-1","provider":"MOTORMIA","version":"1.0","type":"link"}