{"product_id":"milltek-decat-downpipe-mercedes-cla-class-cla45-45s-amg-2-0-turbo-coupe-shooting-brake-opf-gpf-20-21","title":"Milltek Decat Downpipe Mercedes CLA-Class CLA45 45S AMG 2.0 Turbo Coupe Shooting Brake OPF\/GPF 20-21","description":"\u003ch2\u003eMilltek Downpipe \u0026amp; De-cat for Mercedes A-Class A45 \u0026amp; A45S AMG 2.0 Turbo (W177 Hatch Only) (2019-2021) – Maximum Flow, Motorsport Use\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's large-bore downpipe and de-cat for the Mercedes CLA-Class CLA45 \u0026amp; 45S AMG 2.0 Turbo Coupe \u0026amp; SHooting Brake (OPF\/GPF Models). It replaces the factory downpipe with a larger-bore pipe and removes the catalytic converter entirely, clearing the single most restrictive point in the exhaust for the biggest flow gain available at this position in the system. It's usually fitted alongside a Stage 2 remap, since the ECU needs to be told to expect the different readings the lambda sensors give once the cat's gone.\u003c\/p\u003e\n\u003cp\u003eIt's built for owners already committed to a serious power upgrade rather than a casual bolt-on, so pair it with the matching Milltek cat-back system for the full effect.\u003c\/p\u003e\n\u003cp\u003eBecause it removes the cat, it's intended for off-road and competition use. A de-catted car will fail an MOT emissions test and isn't legal to use on UK roads.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e Large-bore Downpipe and De-cat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 80mm (3.15\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC Approved:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 4 to 5 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e80mm (3.15\") pipework\u003c\/li\u003e\n\u003cli\u003eRemoves the factory catalyst for maximum flow (off-road and competition use only)\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMercedes A-Class A45 \u0026amp; A45S AMG 2.0 Turbo (W177 Hatch Only) (2019-2021)\u003c\/li\u003e\n\u003cli\u003eMercedes CLA-Class CLA45 \u0026amp; 45S AMG 2.0 Turbo Coupe \u0026amp; SHooting Brake (OPF\/GPF Models) (2020-2021)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e the Mercedes A-Class A45 AMG 2.0 Turbo (W176), which needs the \u003ca href=\"\/products\/milltek-decat-downpipe-mercedes-a-class-a45-amg-2-0-turbo-w176-12-18\"\u003eMilltek Downpipe \u0026amp; De-cat Mercedes A-Class A45 AMG 2.0 Turbo W176 12-18\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 4 to 5 hours. Before ordering, note: Includes OPF\/GPF Bypass - Requires Stage 2 ECU Software. Only for vehicles without additional temperature sensor in downpipe. This work involves removing parts close to the turbo and engine, so we recommend fitting by a specialist with a ramp and suitable software support.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-filter-back-exhaust-mercedes-a-class-a45-a45s-amg-2-0-turbo-w177-hatch-19-21\"\u003eMilltek Filter-back Exhaust Mercedes A-Class A45 \u0026amp; A45S AMG 2.0 Turbo W177 Hatch 19-21\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Mercedes CLA-Class CLA45 \u0026amp; 45S AMG 2.0 Turbo Coupe \u0026amp; SHooting Brake (OPF\/GPF Models)?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Mercedes CLA-Class CLA45 \u0026amp; 45S AMG 2.0 Turbo Coupe \u0026amp; SHooting Brake (OPF\/GPF Models) as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eDoes it fit the Mercedes A-Class A45 AMG 2.0 Turbo (W176)?\u003c\/h3\u003e\n\u003cp\u003eNo. For that car, choose the \u003ca href=\"\/products\/milltek-decat-downpipe-mercedes-a-class-a45-amg-2-0-turbo-w176-12-18\"\u003eMilltek Downpipe \u0026amp; De-cat Mercedes A-Class A45 AMG 2.0 Turbo W176 12-18\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eNo. Removing the catalyst means the car will fail an MOT emissions test, so it is for off-road and competition use only.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek notes: \"Includes OPF\/GPF Bypass - Requires Stage 2 ECU Software. Only for vehicles without additional temperature sensor in downpipe.\". Without suitable software the engine management is likely to log faults.\u003c\/p\u003e\n\u003ch3\u003eWill removing the cat cause a warning light?\u003c\/h3\u003e\n\u003cp\u003eWithout suitable software it is likely to, as the ECU expects the readings a working catalyst gives. This is why Milltek pairs it with a remap.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 4 to 5 hours.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":56392882585985,"sku":"MIL-SSXMZ155","price":891.44,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXMZ155_1_519cd71b-a93e-4743-940b-9623ff339446.jpg?v=1791893721","url":"https:\/\/milltekexhaustshop.com\/products\/milltek-decat-downpipe-mercedes-cla-class-cla45-45s-amg-2-0-turbo-coupe-shooting-brake-opf-gpf-20-21","provider":"Milltek Exhaust Shop","version":"1.0","type":"link"}