{"product_id":"bmw-m340i-440i-downpipe-200-cell-hi-flow-sports-cat-heat-shield-mtc-motorsport","title":"B58 Downpipe with 200 Cell Sports Cat \u0026 Heat Shield - MTC Motorsport, Part No. DP-B58-200","description":"\u003cp\u003eFor B58 owners chasing fast road or track day gains without the decat hassle: this MTC Motorsport downpipe swaps the restrictive OEM unit for a 4.5 inch SS304 TIG-welded assembly with integrated 200 cell sports cat and full heat shield.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits\u003c\/strong\u003e: G20 M340i, G21\/G22 440i, G30\/G32 540i\/640i, G11 740i, G14\/G15\/G16 840i, G29 Z4 M40i, A90 Supra (OPF\/PPF only)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 1 ready\u003c\/strong\u003e: pairs cleanly with ECU remaps - no CELs, no emissions test fails when installed correctly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot a decat\u003c\/strong\u003e: retains catalytic function but flows like a race part - Euro 5 compliant, MOT-legal if your tester checks paperwork not pipe colour\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReal-world result\u003c\/strong\u003e: +22 bhp typical on stage 1, sharper throttle response, deeper B58 tone - zero drone, no rasp, just purpose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat shield included\u003c\/strong\u003e: wraps the cat core fully - protects wiring looms, intercooler pipework and your bonnet liner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSearch terms covered\u003c\/strong\u003e: B58 downpipe, G20 downpipe, A90 Supra downpipe, 200 cell sports cat, fast road downpipe, track day B58, stage 1 B58, OPF downpipe, B58 heat shield downpipe\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Cuz Race Cars","offers":[{"title":"Default Title","offer_id":54384499163479,"sku":null,"price":749.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1038\/4575\/7271\/files\/BMWM340i440i540i640i740iand840i4.5_StainlessSteelDownpipewith200CellHi-FlowSportsCatandHeatShield_e628ecfe-a4fd-4dd1-9155-1eaed4cce580.jpg?v=1787154607","url":"https:\/\/cuzracecars.com\/products\/bmw-m340i-440i-downpipe-200-cell-hi-flow-sports-cat-heat-shield-mtc-motorsport","provider":"Cuz Race Cars","version":"1.0","type":"link"}