{"product_id":"yonristic-porsche-mercedes-c300-w205-performance-cat-back-exhaust-system","title":"Yonristic Porsche Mercedes C300 w205 Performance Cat-Back Exhaust System","description":"\u003cp data-start=\"259\" data-end=\"356\"\u003eTrue 3-inch architecture. Remote-controlled valving. A complete transformation for the W205 C300.\u003c\/p\u003e\n\u003cp data-start=\"358\" data-end=\"987\"\u003eThe factory exhaust on the W205 C300 is designed around refinement and compliance, leaving significant flow and character on the table. Our cat-back system is engineered to unlock the car’s hidden personality while maintaining everyday usability. We run a full \u003cstrong data-start=\"619\" data-end=\"654\"\u003e3.0-inch mandrel-bent main pipe\u003c\/strong\u003e from the front connection all the way through the system, eliminating restrictive sections found in the OEM layout. The larger, constant-diameter flow path reduces backpressure, improves exhaust velocity, and allows the turbocharged four-cylinder to breathe freely, especially in the mid-range where the car spends most of its time.\u003c\/p\u003e\n\u003cp data-start=\"989\" data-end=\"1642\"\u003eAt the rear, the system splits into a dual-exit configuration feeding \u003cstrong data-start=\"1059\" data-end=\"1095\"\u003eelectronically actuated mufflers\u003c\/strong\u003e, giving you full control over the exhaust character. With the valves closed, exhaust gases are routed through the internal chambers to keep volume restrained and cruising smooth. Open the valves and the flow path becomes significantly more direct, sharpening throttle response and delivering a deeper, more aggressive tone that finally matches the car’s performance potential. Valve operation is handled exclusively through the \u003cstrong data-start=\"1524\" data-end=\"1560\"\u003eincluded wireless remote control\u003c\/strong\u003e, allowing instant switching between modes without relying on factory electronics.\u003c\/p\u003e\n\u003cp data-start=\"1644\" data-end=\"2104\"\u003eEvery component is built with precision and longevity in mind. The system is available in \u003cstrong data-start=\"1734\" data-end=\"1762\"\u003eAISI 304 stainless steel\u003c\/strong\u003e for excellent corrosion resistance and daily durability, or \u003cstrong data-start=\"1823\" data-end=\"1853\"\u003eTi-6Al-4V Grade 5 titanium\u003c\/strong\u003e for drivers seeking maximum weight savings and a more vivid, motorsport-inspired acoustic character. All sections are \u003cstrong data-start=\"1972\" data-end=\"1991\"\u003ehand TIG-welded\u003c\/strong\u003e, with smooth mandrel bends that preserve diameter through every curve for consistent flow and OEM-level fitment.\u003c\/p\u003e\n\u003cp data-start=\"2106\" data-end=\"2467\"\u003eVisually, the system is finished with \u003cstrong data-start=\"2144\" data-end=\"2166\"\u003equad 4.5-inch tips\u003c\/strong\u003e, designed to properly fill the rear diffuser and give the W205 a wider, more performance-oriented stance. Tip finishes include chrome, burnt, black, or carbon fiber to match the vehicle’s aesthetic. Installation is fully bolt-on, utilizing factory mounting points with no cutting or welding required.\u003c\/p\u003e\n\u003cp data-start=\"2469\" data-end=\"2728\"\u003eThe result is a C300 that cruises quietly when needed, opens up instantly on demand, and delivers improved response, stronger mid-range pull, and a refined yet aggressive sound signature — all engineered as a complete system rather than just a louder exhaust.\u003c\/p\u003e\n\u003ch2 data-start=\"125\" data-end=\"146\"\u003eKey Specifications\u003c\/h2\u003e\n\u003cp data-start=\"148\" data-end=\"317\"\u003e\u003cstrong data-start=\"148\" data-end=\"159\"\u003eFitment\u003c\/strong\u003e\u003cbr data-start=\"159\" data-end=\"162\"\u003eMercedes-Benz \u003cstrong data-start=\"176\" data-end=\"191\"\u003eC300 (W205)\u003c\/strong\u003e\u003cbr data-start=\"191\" data-end=\"194\"\u003eModel Years: \u003cstrong data-start=\"207\" data-end=\"220\"\u003e2015–2021\u003c\/strong\u003e\u003cbr data-start=\"220\" data-end=\"223\"\u003eBody Styles: \u003cstrong data-start=\"236\" data-end=\"286\"\u003eSedan (W205) \/ Coupe (C205) \/ Cabriolet (A205)\u003c\/strong\u003e\u003cbr data-start=\"286\" data-end=\"289\"\u003eDrivetrain: \u003cstrong data-start=\"301\" data-end=\"317\"\u003eRWD \/ 4MATIC\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"319\" data-end=\"573\"\u003e\u003cstrong data-start=\"319\" data-end=\"336\"\u003eConfiguration\u003c\/strong\u003e\u003cbr data-start=\"336\" data-end=\"339\"\u003eCat-back exhaust system\u003cbr data-start=\"362\" data-end=\"365\"\u003eTrue \u003cstrong data-start=\"370\" data-end=\"407\"\u003e3.0-inch mandrel-bent main piping\u003c\/strong\u003e for improved flow and reduced backpressure\u003cbr data-start=\"450\" data-end=\"453\"\u003eDual rear muffler layout with electronically actuated valves\u003cbr data-start=\"513\" data-end=\"516\"\u003eStraight-through performance routing when valves are open\u003c\/p\u003e\n\u003cp data-start=\"575\" data-end=\"793\"\u003e\u003cstrong data-start=\"575\" data-end=\"592\"\u003eValve Control\u003c\/strong\u003e\u003cbr data-start=\"592\" data-end=\"595\"\u003eWireless \u003cstrong data-start=\"604\" data-end=\"638\"\u003eremote-controlled valve system\u003c\/strong\u003e (included)\u003cbr data-start=\"649\" data-end=\"652\"\u003eOn-demand valve open\/close modes for quiet cruising or aggressive sound\u003cbr data-start=\"723\" data-end=\"726\"\u003eIndependent system — \u003cstrong data-start=\"747\" data-end=\"793\"\u003edoes not require factory valve electronics\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"795\" data-end=\"1066\"\u003e\u003cstrong data-start=\"795\" data-end=\"808\"\u003eMaterials\u003c\/strong\u003e\u003cbr data-start=\"808\" data-end=\"811\"\u003eAISI \u003cstrong data-start=\"816\" data-end=\"839\"\u003e304 Stainless Steel\u003c\/strong\u003e – corrosion resistant and daily-driver durable\u003cbr data-start=\"886\" data-end=\"889\"\u003eOptional \u003cstrong data-start=\"898\" data-end=\"928\"\u003eTi-6Al-4V Grade 5 Titanium\u003c\/strong\u003e – significant weight savings + sharper acoustic character\u003cbr data-start=\"986\" data-end=\"989\"\u003eHand TIG-welded construction for strength, fitment accuracy, and clean finish\u003c\/p\u003e\n\u003cp data-start=\"1068\" data-end=\"1315\"\u003e\u003cstrong data-start=\"1068\" data-end=\"1089\"\u003ePerformance Gains\u003c\/strong\u003e \u003cem data-start=\"1090\" data-end=\"1144\"\u003e(realistic estimates for stock\/tune-ready W205 C300)\u003c\/em\u003e\u003cbr data-start=\"1144\" data-end=\"1147\"\u003eHorsepower Increase: \u003cstrong data-start=\"1168\" data-end=\"1181\"\u003e~+8–14 HP\u003c\/strong\u003e\u003cbr data-start=\"1181\" data-end=\"1184\"\u003eTorque Increase: \u003cstrong data-start=\"1201\" data-end=\"1218\"\u003e~+10–16 lb-ft\u003c\/strong\u003e\u003cbr data-start=\"1218\" data-end=\"1221\"\u003eFaster spool response and improved mid-range pull, especially when paired with a tune\/downpipe\u003c\/p\u003e\n\u003cp data-start=\"1519\" data-end=\"1751\"\u003e\u003cstrong data-start=\"1519\" data-end=\"1546\"\u003eManufacturing \u0026amp; Fitment\u003c\/strong\u003e\u003cbr data-start=\"1546\" data-end=\"1549\"\u003eMandrel bending maintains constant diameter through every radius\u003cbr data-start=\"1613\" data-end=\"1616\"\u003eCNC-cut flanges and brackets for OEM-style mounting and alignment\u003cbr data-start=\"1681\" data-end=\"1684\"\u003eDesigned to clear factory underbody bracing and suspension geometry\u003c\/p\u003e\n\u003cp data-start=\"1753\" data-end=\"1913\"\u003e\u003cstrong data-start=\"1753\" data-end=\"1769\"\u003eInstallation\u003c\/strong\u003e\u003cbr data-start=\"1769\" data-end=\"1772\"\u003e100% \u003cstrong data-start=\"1777\" data-end=\"1788\"\u003ebolt-on\u003c\/strong\u003e using factory mounting points\u003cbr data-start=\"1818\" data-end=\"1821\"\u003eNo cutting or welding required\u003cbr data-start=\"1851\" data-end=\"1854\"\u003eRemote valve module installs cleanly with included hardware\u003c\/p\u003e","brand":"Yonristic Performance","offers":[{"title":"AISI304 Stainless Steel \/ Sedan","offer_id":46034887540970,"sku":"YR-0560-YON-AIS","price":2399.0,"currency_code":"USD","in_stock":true},{"title":"AISI304 Stainless Steel \/ Coupe","offer_id":46034887573738,"sku":"YR-2744-YON-AIS","price":2399.0,"currency_code":"USD","in_stock":true},{"title":"AISI304 Stainless Steel \/ Cabriolet","offer_id":46034887606506,"sku":"YR-8739-YON-AIS","price":2399.0,"currency_code":"USD","in_stock":true},{"title":"4AL-6V Titanium \/ Sedan","offer_id":46034887639274,"sku":"YR-4113-YON-4AL","price":3199.0,"currency_code":"USD","in_stock":true},{"title":"4AL-6V Titanium \/ Coupe","offer_id":46034887672042,"sku":"YR-5420-YON-4AL","price":3199.0,"currency_code":"USD","in_stock":true},{"title":"4AL-6V Titanium \/ Cabriolet","offer_id":46034887704810,"sku":"YR-3064-YON-4AL","price":3199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0477\/0427\/7142\/files\/60_b8c93ab8-013c-4493-a395-d58616ea6466.jpg?v=1778282228","url":"https:\/\/www.k2-industries.com\/en-my\/products\/yonristic-porsche-mercedes-c300-w205-performance-cat-back-exhaust-system","provider":"K2 Industries","version":"1.0","type":"link"}