{"product_id":"s55-3-inch-downpipe","title":"S55 3-Inch Downpipe","description":"The Flashark S55 downpipe is engineered to replace the restrictive factory downpipes on BMW M3 (F80) and M4 (F82\/F83) models equipped with S55 engines. Situated directly after the catalytic converters, these upgraded downpipes facilitate a smoother and less restricted flow of exhaust gases from the turbocharger, leading to significant increases in horsepower and torque. This improved airflow contributes to a more responsive and engaging driving experience.\n\nAll joints are TIG welded to ensure durability and prevent cracking, while the CNC-machined flange provides maximum strength. The flanges are chrome-plated for enhanced corrosion resistance, and the entire unit is finished with a mirror polish.\n\nThis downpipe is specifically designed for the F80 M3 Sedan (S55 Engine, 317 kW) and the F82\/F83 M4 Coupe \u0026amp; Convertible (S55 Engine, 317–368 kW). It is confirmed to only fit F80\/F82\/F83 chassis. A tune is mandatory for the S55 DME to recognize the new airflow and prevent check engine lights; popular tuning options include Bootmod3 (BM3) Stage 2 maps or Burger Motorsports (JB4). Installation is estimated to take 3-5 hours and may require an impact wrench for seized turbo outlet bolts, along with new gaskets and anti-seize compound.","brand":"Flashark","offers":[{"title":"Default Title","offer_id":52688374169912,"sku":"FLES08507","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/662660649.webp?v=1784889286","url":"https:\/\/store.motormia.co\/products\/s55-3-inch-downpipe","provider":"MOTORMIA","version":"1.0","type":"link"}