{"product_id":"b58-4-5-inch-stainless-steel-race-downpipe","title":"B58 4.5-Inch Stainless Steel Race Downpipe","description":"The Spool Performance B58 Stainless Steel Downpipe is a race downpipe upgrade engineered to enhance performance for B58 engines. Constructed from durable 304-grade stainless steel, this 4.5-inch diameter downpipe is designed to significantly reduce backpressure on the turbochargers. This reduction allows the turbos to build more boost, leading to improved overall engine performance and potentially prolonging turbocharger life.\n\nThe downpipe features an improved flexible design, contributing to its durability and ease of installation. It is specifically designed to fit various BMW models equipped with the B58 engine, including the 240i, 340i, 440i, 540i, and 740i, as well as the A90 and A91 Toyota Supra.\n\nWhile the product description focuses on performance and fitment for specific B58-powered vehicles, it's important to note that this is a race component. Proper installation and potential tuning may be required to maximize benefits and ensure optimal operation. Always consult with a professional if you are unsure about installation or required supporting modifications.","brand":"Spool Performance","offers":[{"title":"Default Title","offer_id":52663788634424,"sku":"SP-B58-DP-CL","price":167.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687713415.jpg?v=1784329657","url":"https:\/\/store.motormia.co\/products\/b58-4-5-inch-stainless-steel-race-downpipe","provider":"MOTORMIA","version":"1.0","type":"link"}