{"product_id":"n55-decat-downpipe-f2x-f3x","title":"N55 Decat Downpipe (F2X \u0026 F3X)","description":"\u003ch3\u003eBMW N55 4-Inch Stainless Steel Decat Downpipe | 135i 235i 335i 435i (F2X \/ F3X)\u003c\/h3\u003e\n\u003cp\u003eStrip the restriction out of your N55 and let it breathe. The Midnight Performance N55 Decat Downpipe replaces the factory catalytic converter with a 4-inch T304 stainless steel straight-through pipe — slashing backpressure, sharpening turbo response, and unlocking the aggressive exhaust character the N55 was always capable of.\u003c\/p\u003e\n\u003cp\u003ePrecision-engineered for the F2X and F3X chassis, this is the foundation for any serious Stage 2 or Stage 3 build.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e T304 stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe diameter:\u003c\/strong\u003e 4-inch (102mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Mandrel-bent, TIG welded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalyst:\u003c\/strong\u003e None — straight-through decat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Direct bolt-on\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBMW 135i — F20 \/ F21\u003c\/li\u003e\n\u003cli\u003eBMW 235i — F22 \/ F23\u003c\/li\u003e\n\u003cli\u003eBMW 335i — F30 \/ F31 \/ F34\u003c\/li\u003e\n\u003cli\u003eBMW 435i — F32 \/ F33 \/ F36\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e⚠️ For off-road and track use only. A Stage 2 remap is recommended after fitting. Not road legal in the UK.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eProfessional Installation Available\u003c\/h3\u003e\n\u003cp\u003eOur Birmingham workshop can fit this for you. \u003ca href=\"\/pages\/contact\"\u003eContact us\u003c\/a\u003e for a quote.\u003c\/p\u003e","brand":"Midnight Performance","offers":[{"title":"Default Title","offer_id":58262938616152,"sku":"MP-BMW-N55-DECAT-F2X","price":149.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0997\/3458\/5688\/files\/n55-decat-downpipe-f2x-f3x-8191457.jpg?v=1787663837","url":"https:\/\/modifiedpartssupplier.co.uk\/products\/n55-decat-downpipe-f2x-f3x","provider":"Modified Parts Supplier","version":"1.0","type":"link"}