{"product_id":"cat-back-exhaust-for-ford-focus-rs-2016-2018-2-3l","title":"Cat Back Exhaust for Ford Focus RS (2016-2018) 2.3L","description":"\u003ch2\u003eHigh-Flow Cat-Back Exhaust for 2016-2018 Ford Focus\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Cat-Back Exhaust replaces the restrictive factory exhaust piping and baffled rear muffler on the 2016-2018 Ford Focus to lower exhaust gas backpressure and optimize post-turbo velocity.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Focus Exhaust Flow Restriction\u003c\/h3\u003e\n\u003cp\u003eFrom the factory, the \u003cstrong\u003eC346\u003c\/strong\u003e platform Ford Focus RS exhaust is constrained by narrow press-bent tubing transitions, internal chamber baffles, and heavy sound deadening designed to mute acoustic character at the cost of exhaust velocity. Under hard boost cycles, the \u003cstrong\u003e2.3L EcoBoost\u003c\/strong\u003e creates intense thermal loading; the factory system traps excessive heat near the rear axle, elevating backpressure at the turbine discharge, increasing exhaust gas temperatures (EGTs), and choking top-end volumetric efficiency.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eFabricated from high-grade, mandrel-bent T304 stainless steel tubing, this direct-fit cat-back exhaust establishes a continuous internal diameter that eliminates gas bottlenecks and laminar flow separation. Precision TIG-welded joints provide structural integrity capable of withstanding extreme thermal expansion without cracking. Straight-through absorption-style resonators minimize interior cabin drone while dramatically accelerating gas evacuation speeds away from the turbocharger, improving throttle response and maximizing power transfer across the entire rev range.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; margin-bottom: 20px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2016-2018 Ford Focus RS\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2.3L EcoBoost \/ C346\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e350 hp \/ 350 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2016 Ford Focus RS 2.3L EcoBoost AWD Hatchback\u003c\/li\u003e\n  \u003cli\u003e2017 Ford Focus RS 2.3L EcoBoost AWD Hatchback\u003c\/li\u003e\n  \u003cli\u003e2018 Ford Focus RS 2.3L EcoBoost AWD Hatchback\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the C346 Focus?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2016-2018 Ford Focus equipped with the 2.3L EcoBoost engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this exhaust system trigger a Check Engine Light (CEL)?\u003c\/strong\u003e\u003cbr\u003e No, this system mounts downstream of the catalytic converter and factory oxygen sensors, leaving primary emissions monitoring fully intact without setting fault codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Performance Caliber\u003c\/h3\u003e\n\u003cp\u003eEngineered to handle relentless track abuse and high thermal thresholds, this exhaust system gives your turbocharged hot hatch the optimal flow dynamics, mechanical strength, and acoustic depth required for high-performance driving.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50622416421112,"sku":"DS-E41JGMJ49","price":257.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/cat-back-exhaust-for-ford-focus-rs-2016-2018-2-3l-1.jpg?v=1790264685","url":"https:\/\/performancechiptuning.com\/fr\/products\/cat-back-exhaust-for-ford-focus-rs-2016-2018-2-3l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}