{"product_id":"cat-back-exhaust-for-ford-focus-2000-2004-2-0l","title":"Cat Back Exhaust for Ford Focus (2000-2004) 2.0L","description":"\u003ch2\u003eHigh-Flow Cat-Back Exhaust for 2000-2004 Ford Focus\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Cat-Back Exhaust System replaces the restrictive factory exhaust piping and baffled muffler on the 2000-2004 Ford Focus 2.0L to reduce exhaust backpressure, improve scavenging efficiency, and deliver a cleaner acoustic profile.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Ford Focus Exhaust Flow Restriction\u003c\/h3\u003e\n\u003cp\u003eThe factory exhaust on the first-generation \u003cstrong\u003eC170\u003c\/strong\u003e Focus utilizes mild aluminized steel prone to premature oxidation and internal rot. Internally, the OEM tubing incorporates crush bends that decrease cross-sectional area by up to 20% in critical transition zones. Combined with a restrictive, multi-chambered stock muffler engineered solely for noise suppression, the factory setup creates excessive backpressure downstream of the catalytic converter. This restriction limits exhaust gas velocity, elevates cylinder head operating temperatures under sustained load, and hampers volumetric efficiency across the mid-to-high RPM range.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a direct bolt-on upgrade, this cat-back system is constructed from mandrel-bent polished \u003cstrong\u003eT-304 stainless steel\u003c\/strong\u003e to ensure uniform pipe diameter and complete corrosion resistance. Smooth radius bends eliminate flow turbulence, sustaining optimal exhaust velocity and scavenging for the \u003cstrong\u003e2.0L Zetec\u003c\/strong\u003e and \u003cstrong\u003e2.0L SPI\u003c\/strong\u003e engines. The low-restriction straight-through muffler suppresses high-frequency rasp while mitigating thermal soak beneath the floor pan. Featuring robotic TIG welds, pre-welded OE-style hangers, and precision-machined mating flanges, this kit mounts directly to factory exhaust hang points with zero cutting required.\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;\"\u003e2000-2004 Ford Focus\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;\"\u003e2.0L Zetec \/ C170\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;\"\u003e130 hp \/ 135 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;\"\u003eSPT-CAT1246\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2000-2004 Ford Focus ZX3 2.0L L4\u003c\/li\u003e\n  \u003cli\u003e2000-2004 Ford Focus ZTS 2.0L L4\u003c\/li\u003e\n  \u003cli\u003e2000-2004 Ford Focus SE 2.0L L4\u003c\/li\u003e\n  \u003cli\u003e2000-2004 Ford Focus LX 2.0L L4\u003c\/li\u003e\n  \u003cli\u003e2002-2004 Ford Focus ZX5 2.0L L4\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the C170 Focus?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2000-2004 Ford Focus equipped with the 2.0L engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill installing this cat-back trigger a Check Engine Light (CEL)?\u003c\/strong\u003e\u003cbr\u003e No, because this system bolts directly behind the catalytic converter, downstream oxygen sensor operation remains completely unaffected.\u003c\/p\u003e\n\n\u003ch3\u003eThe Ford Compact Performance Benchmark\u003c\/h3\u003e\n\u003cp\u003eUnlock authentic sport compact response with continuous mandrel-bent stainless flow, engineered to provide a distinct, deep acoustic note without highway drone.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50608333095160,"sku":"DS-EE4ZH33S0","price":195.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/cat-back-exhaust-for-ford-focus-2000-2004-2-0l-1.jpg?v=1790263967","url":"https:\/\/performancechiptuning.com\/fr\/products\/cat-back-exhaust-for-ford-focus-2000-2004-2-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}