{"product_id":"mercedes-benz-w204-c63-catless-downpipe-with-heatshield","title":"Mercedes Benz W204 C63 Catless Downpipe With Heatshield","description":"\u003cp\u003eThe biggest single gain available to a stock-manifold M156. This Catless Downpipe kit removes both factory catalytic converters from the Mercedes-AMG W204 C63 and replaces them with smooth mandrel-bent stainless pipes under full woven heat shielding.\u003c\/p\u003e\n\u003cp\u003eThe 6.2 litre V8 is naturally aspirated, so every restriction downstream of the heads costs it directly. The factory cats are the tightest part of the system, and taking them out lets the engine clear its cylinders far more freely at the top of the rev range, where this motor does its best work.\u003c\/p\u003e\n\u003cp\u003eManufactured from T304 stainless steel with mandrel bends and precision TIG welding throughout, wrapped in woven heat shielding, with the factory sensor bungs retained.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003ch3\u003eFull Catalyst Delete, Both Banks\u003c\/h3\u003e\n\u003cp\u003eThe greatest single restriction in the system removed on each side, for maximum exhaust flow.\u003c\/p\u003e\u003ch3\u003eSupplied as a Matched Pair\u003c\/h3\u003e\n\u003cp\u003eThe M156 runs a separate exhaust path for each bank, so it takes two pipes. This kit replaces both - changing only one leaves half the restriction in place.\u003c\/p\u003e\u003ch3\u003eFull Woven Heat Shielding\u003c\/h3\u003e\n\u003cp\u003eWrapped over the length of both pipes, reducing radiant heat into the transmission tunnel and the components packed around them.\u003c\/p\u003e\n\u003ch3\u003eT304 Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eHigh-grade, corrosion-resistant material built to withstand the exhaust gas temperatures a hard-driven M156 produces.\u003c\/p\u003e\n\u003ch3\u003eFactory Sensor Bungs Retained\u003c\/h3\u003e\n\u003cp\u003eThe oxygen sensors plug straight back into their original positions on both pipes.\u003c\/p\u003e\n\u003ch3\u003eDirect Bolt-On Fitment\u003c\/h3\u003e\n\u003cp\u003eMounts to the factory manifold flanges and mid section using the original mounting points, with no cutting or fabrication.\u003c\/p\u003e\n\u003ch2\u003ePerformance Benefits\u003c\/h2\u003e\n\u003cp\u003e The largest power and torque gain available from a single exhaust part on the M156\u003cbr\u003e A far harder, more vocal V8 note\u003cbr\u003e Sharper throttle response\u003cbr\u003e Maximum reduction in backpressure\u003cbr\u003e Lower transmission tunnel temperatures thanks to the shielding\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003eMercedes-AMG C63 (W204, 2008-2014)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e6.2L Naturally Aspirated M156 V8 Engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSupplied as a matched left and right pair. The M156 is a naturally aspirated V8 with a bank of cylinders each side, so the system runs two pipes from the headers back.\u003c\/p\u003e\u003ch2\u003ePlease Note\u003c\/h2\u003e\n\u003cp\u003eRemoving a catalytic converter is not legal for road use in Australia. This part is intended for off-road, track and motorsport use only, and it is the owner's responsibility to comply with the regulations in their state.\u003c\/p\u003e\n\u003cp\u003eA catless system will trigger a check engine light without a supporting ECU tune. A tune is recommended, and professional installation is recommended.\u003c\/p\u003e\u003ch2\u003eWhy Choose Proven Performance Parts\u003c\/h2\u003e\n\u003cp\u003eWe specialise in high-performance parts for European vehicles - including Volkswagen GTI \u0026amp; R models, Audi S\/RS platforms, and Mercedes-AMG applications. Every product we offer is carefully selected for its quality, fitment, and real-world performance - tested by enthusiasts, for enthusiasts.\u003c\/p\u003e","brand":"Proven Performance Parts","offers":[{"title":"Mercedes-AMG W204 C63 (2008-2014)","offer_id":52928141000986,"sku":null,"price":1400.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/1177\/4490\/files\/att3_ffc5e066-0a73-4cf2-b000-6e7c4ca12d2c.png?v=1790068681","url":"https:\/\/provenperformanceparts.com.au\/products\/mercedes-benz-w204-c63-catless-downpipe-with-heatshield","provider":"Proven Performance Parts","version":"1.0","type":"link"}