{"product_id":"mercedes-w177-a45-a45s-amg-stainless-steel-valved-catback-exhaust","title":"Mercedes W177, A45\/A45S AMG Stainless Steel Valved Catback Exhaust","description":"\u003cp\u003eGive the M139 in your Mercedes-AMG A45 S the voice it always deserved with this Stainless Steel Valved Catback Exhaust — a full replacement of the centre and rear sections, built around a twin-valved rear muffler and twin tips, and supplied with the valve remote kit.\u003c\/p\u003e\n\u003cp\u003eThe A45 S makes more power per litre than almost anything else on the road, and then the factory exhaust spends all of it keeping quiet. European drive-by noise limits are the reason the standard system is as silenced as it is, and they are why a car this quick can sound so ordinary from outside. This system replaces the standard centre and rear sections with mandrel-bent 304 stainless tubing and a valved rear muffler.\u003c\/p\u003e\n\u003cp\u003eThe valves are operated from the supplied remote, so the volume is your decision rather than something the throttle position decides for you. Closed, it is close enough to standard for an early morning. Open, it is a different car entirely.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003ch3\u003eIndependent Varex Valve System\u003c\/h3\u003e\n\u003cp\u003eRather than reusing the restricted factory valves, this system operates its own dedicated valve assembly with complete travel in both directions. Sealed when closed for quiet running, and fully unobstructed when open for maximum flow and volume.\u003c\/p\u003e\u003ch3\u003e304 Stainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eMandrel-bent 304 stainless throughout for a consistent bore through every corner, corrosion resistance and a long service life under Australian conditions.\u003c\/p\u003e\n\u003ch3\u003eTwin Valve Rear Muffler\u003c\/h3\u003e\n\u003cp\u003eA valve on each exit rather than a single restriction, so both sides of the system open together and the note stays even across the car.\u003c\/p\u003e\n\u003ch3\u003eRemote Kit Supplied\u003c\/h3\u003e\n\u003cp\u003eThe handset, receiver and loom are included in the box. Nothing else to buy and no connection to the factory valve motors.\u003c\/p\u003e\n\u003ch3\u003ePrecision TIG Welded\u003c\/h3\u003e\n\u003cp\u003eClean, strong welds built to survive the heat cycling and vibration a hard-driven turbo four puts through an exhaust.\u003c\/p\u003e\n\u003ch3\u003eDirect Bolt-On Fitment\u003c\/h3\u003e\n\u003cp\u003eFits at the factory mounting points and hangers, using the original rubber isolators. No cutting and no fabrication.\u003c\/p\u003e\n\u003ch2\u003ePerformance Benefits\u003c\/h2\u003e\n\u003cp\u003eA deeper, far louder exhaust note with the valves open\u003cbr\u003eNear-standard volume with the valves closed\u003cbr\u003eReduced restriction through the centre and rear sections\u003cbr\u003eSharper throttle response and a more urgent top end\u003cbr\u003eLighter than the heavily silenced factory system\u003cbr\u003eA proper foundation for a tuned A45 S\u003c\/p\u003e\u003ch2\u003eW177 Hatch Only - Check Before You Order\u003c\/h2\u003e\n\u003cp\u003eThis is a full rear-section replacement, and a rear section follows the \u003cstrong\u003ebody\u003c\/strong\u003e rather than the engine. It is shaped for the \u003cstrong\u003eW177 A45 hatch\u003c\/strong\u003e and nothing else.\u003c\/p\u003e\n\u003cp\u003eOur M139 \u003cstrong\u003edownpipes\u003c\/strong\u003e cover the A45, the CLA45 and the GLA45, because those follow the engine and all three share it. \u003cstrong\u003eThis catback does not.\u003c\/strong\u003e A C118 CLA45 is a four-door coupe and an H247 GLA45 is an SUV — different floor, different silencer position, different exit geometry. If you have either of those, contact us rather than ordering this.\u003c\/p\u003e\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003eMercedes-AMG A45 \/ A45 S - W177 (2019-2025)\u003c\/p\u003e\n\u003cp\u003e2.0L Turbocharged M139 Engine\u003c\/p\u003e\n\u003cp\u003eHatch body only\u003c\/p\u003e\n\u003ch2\u003ePlease Note\u003c\/h2\u003e\n\u003cp\u003eProfessional installation is recommended. Exhaust sound will vary depending on whether a factory or aftermarket downpipe is fitted.\u003c\/p\u003e\n\u003cp\u003eCheck your local road rules before fitting. Exhaust noise requirements vary by state and a vehicle must remain compliant for road use.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose Proven Performance Parts\u003c\/h2\u003e\n\u003cp\u003eWe specialise in high-performance parts for European vehicles — Volkswagen GTI \u0026amp; R models, Audi S\/RS platforms, BMW M cars and Mercedes-AMG. 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 W177 A45 \/ A45 S (2019-2025) \/ Black Tip","offer_id":52870023151898,"sku":null,"price":1965.0,"currency_code":"AUD","in_stock":true},{"title":"Mercedes-AMG W177 A45 \/ A45 S (2019-2025) \/ Chrome Tip","offer_id":52870023971098,"sku":null,"price":1965.0,"currency_code":"AUD","in_stock":true},{"title":"Mercedes-AMG W177 A45 \/ A45 S (2019-2025) \/ Carbon Fibre Style Tip","offer_id":52870024003866,"sku":null,"price":1965.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/1177\/4490\/files\/2_acf495ab-7a8e-4723-9aae-f03989380db9.png?v=1789372286","url":"https:\/\/provenperformanceparts.com.au\/products\/mercedes-w177-a45-a45s-amg-stainless-steel-valved-catback-exhaust","provider":"Proven Performance Parts","version":"1.0","type":"link"}