{"product_id":"bmw-f-series-b58-200-cell-sports-cat-downpipe","title":"R44 BMW F Series B58 Exhaust 200 Cell Sports Cat Downpipe (M140i, M240i, 340i, 440i, G30 540i \u0026 more)","description":"\u003cp data-start=\"153\" data-end=\"814\"\u003eThe R44 BMW F Series B58 \u003cstrong data-start=\"178\" data-end=\"201\"\u003e200 Cell Sports Cat\u003c\/strong\u003e Downpipe is engineered to deliver a strong balance of improved exhaust flow, enhanced sound and dependable everyday performance for B58-powered BMW models. Manufactured from high-quality stainless steel, this downpipe replaces the restrictive factory catalytic converter with a high-flow \u003cstrong data-start=\"490\" data-end=\"518\"\u003e200 cell sports catalyst\u003c\/strong\u003e, significantly reducing back pressure while retaining a more controlled and refined exhaust note compared to a full catless setup. An \u003cstrong data-start=\"653\" data-end=\"679\"\u003eintegrated heat shield\u003c\/strong\u003e ensures effective thermal management and long-term durability, all delivered with R44’s focus on precise fitment and sensible pricing.\u003c\/p\u003e\u003chr data-start=\"816\" data-end=\"819\"\u003e\u003ch3 data-start=\"821\" data-end=\"837\"\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\u003cul data-start=\"839\" data-end=\"1357\"\u003e\n\u003cli data-start=\"839\" data-end=\"882\"\u003e\u003cp data-start=\"841\" data-end=\"882\"\u003eHigh-grade stainless steel construction\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"883\" data-end=\"936\"\u003e\u003cp data-start=\"885\" data-end=\"936\"\u003eHigh-flow \u003cstrong data-start=\"895\" data-end=\"934\"\u003e200 cell sports catalytic converter\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"937\" data-end=\"995\"\u003e\u003cp data-start=\"939\" data-end=\"995\"\u003eIntegrated heat shield for improved thermal protection\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"996\" data-end=\"1040\"\u003e\u003cp data-start=\"998\" data-end=\"1040\"\u003eReduced exhaust back pressure versus OEM\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"1041\" data-end=\"1094\"\u003e\u003cp data-start=\"1043\" data-end=\"1094\"\u003eFaster turbo spool and improved throttle response\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"1095\" data-end=\"1148\"\u003e\u003cp data-start=\"1097\" data-end=\"1148\"\u003eEnhanced exhaust tone without excessive harshness\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"1149\" data-end=\"1197\"\u003e\u003cp data-start=\"1151\" data-end=\"1197\"\u003eIncreases tuning potential of the B58 engine\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"1198\" data-end=\"1275\"\u003e\u003cp data-start=\"1200\" data-end=\"1275\"\u003eSupplied with a \u003cstrong data-start=\"1216\" data-end=\"1273\"\u003e1 year R44 Performance warranty and fitment guarantee\u003c\/strong\u003e\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"1276\" data-end=\"1357\"\u003e\u003cp data-start=\"1278\" data-end=\"1357\"\u003eEngineered for accurate fitment across a wide range of B58-powered BMW models\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr data-start=\"1359\" data-end=\"1362\"\u003e\u003ch3 data-start=\"1364\" data-end=\"1417\"\u003e\u003cstrong\u003eImportant Disclaimer – Motorsport-Use Recommended\u003c\/strong\u003e\u003c\/h3\u003e\u003cp data-start=\"1419\" data-end=\"1746\"\u003eWhile this downpipe retains a sports catalytic converter, fitment \u003cstrong data-start=\"1485\" data-end=\"1537\"\u003emay still breach emissions and noise regulations\u003c\/strong\u003e depending on vehicle specification, tuning level and regional legislation. Vehicles fitted with a 200 cell sports cat downpipe \u003cstrong data-start=\"1665\" data-end=\"1691\"\u003emay fail a UK MOT test\u003c\/strong\u003e, particularly when combined with aftermarket software.\u003c\/p\u003e\u003cp data-start=\"1748\" data-end=\"2054\"\u003eInstallation \u003cstrong data-start=\"1761\" data-end=\"1803\"\u003emay trigger an engine management light\u003c\/strong\u003e, and \u003cstrong data-start=\"1809\" data-end=\"1864\"\u003ecustom coding or aftermarket tuning may be required\u003c\/strong\u003e to ensure correct operation. R44 recommends this product primarily for \u003cstrong data-start=\"1936\" data-end=\"1984\"\u003emotorsport-use or closed-course applications\u003c\/strong\u003e and advises customers to check local regulations before installation.\u003c\/p\u003e\u003chr data-start=\"2056\" data-end=\"2059\"\u003e\u003ch3 data-start=\"2061\" data-end=\"2078\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h3\u003e\u003cul data-start=\"2080\" data-end=\"2254\"\u003e\n\u003cli data-start=\"2080\" data-end=\"2105\"\u003e\u003cp data-start=\"2082\" data-end=\"2105\"\u003eBMW M140i (F20 \/ F21)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"2106\" data-end=\"2131\"\u003e\u003cp data-start=\"2108\" data-end=\"2131\"\u003eBMW M240i (F22 \/ F23)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"2132\" data-end=\"2156\"\u003e\u003cp data-start=\"2134\" data-end=\"2156\"\u003eBMW 340i (F30 \/ F31)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"2157\" data-end=\"2187\"\u003e\u003cp data-start=\"2159\" data-end=\"2187\"\u003eBMW 440i (F32 \/ F33 \/ F36)\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"2188\" data-end=\"2204\"\u003e\u003cp data-start=\"2190\" data-end=\"2204\"\u003eBMW G30 540i\u003c\/p\u003e\u003c\/li\u003e\n\u003cli data-start=\"2205\" data-end=\"2254\"\u003e\u003cp data-start=\"2207\" data-end=\"2254\"\u003eOther BMW models equipped with the B58 engine - get in touch for fitment confirmation\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"R44 Exhausts","offers":[{"title":"Default Title","offer_id":48150087237786,"sku":"R44-FSER-B58-DP2","price":585.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0432\/5379\/2922\/files\/bmw-f-series-b58-200-cell-sports-cat-downpipe.jpg?v=1779993452","url":"https:\/\/e9xontario.com\/products\/bmw-f-series-b58-200-cell-sports-cat-downpipe","provider":"E9X Ontario™","version":"1.0","type":"link"}