{"product_id":"b58-4-5-inch-stainless-steel-downpipe","title":"B58 4.5-Inch Stainless Steel Downpipe","description":"Introducing the VRSF B58 Downpipe, engineered as a significant performance upgrade for your B58-powered BMW X3 M40iX (G01) and X4 M40iX (G02). This downpipe is positioned as a premier \"bang for your buck\" modification, offered in both a catless race configuration and a high-flow 200-cell catted option.\n\nThe primary benefit of this downpipe lies in its ability to drastically reduce back pressure. By replacing the restrictive factory catalytic converter, it facilitates quicker turbo spool, a notable increase in horsepower and torque, and a more aggressive exhaust note. The construction features a robust 4.5-inch diameter hand-crafted, TIG-welded 304-grade stainless steel tubing and a CNC-machined 304-grade stainless steel flange for optimal flow and durability.\n\nKey features include its SS304 grade stainless steel construction, a lifetime warranty on the component itself (with a two-year warranty specifically for the catted downpipe), and a \"No Hassle\" satisfaction guarantee that covers fitment. The design incorporates smooth radius bends to minimize turbulence and maximize exhaust flow. When equipped with a tune, this downpipe is advertised to provide gains of 25-30 horsepower.","brand":"VRSF B58","offers":[{"title":"Default Title","offer_id":52664101601592,"sku":"10582060","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687538492.jpg?v=1784333259","url":"https:\/\/store.motormia.co\/products\/b58-4-5-inch-stainless-steel-downpipe","provider":"MOTORMIA","version":"1.0","type":"link"}