{"product_id":"cat-back-exhaust-for-honda-civic-2006-2011-1-8l","title":"Cat Back Exhaust for Honda Civic (2006-2011) 1.8L","description":"\u003ch2\u003eHigh-Flow Cat Back Exhaust for 2006-2011 Honda Civic\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Cat Back Exhaust replaces the restrictive factory exhaust assembly on the 2006-2011 Honda Civic 1.8L to decrease backpressure, enhance exhaust scavenging, and improve engine breathing.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Honda Civic Exhaust Restriction and Corrosion Issues\u003c\/h3\u003e\n\u003cp\u003eThe factory exhaust on the 8th generation Civic utilizes narrow-diameter, press-bent mild steel tubing that pinches flow at every bend radius. Internally, the OEM muffler relies on multi-chamber baffles that introduce extreme turbulence and thermal retention, choking flow from the \u003cstrong\u003eR18A1\u003c\/strong\u003e cylinder head. Over time, the low-grade factory aluminized steel suffers from galvanic corrosion and weld decay at the flange joints, leading to parasitic leaks and compromised exhaust gas velocity.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-replacement cat-back system utilizes mandrel-bent \u003cstrong\u003eT304 stainless steel\u003c\/strong\u003e tubing to maintain a consistent cross-sectional diameter throughout the entire routing. CNC-machined flanges mate cleanly with OEM mounting points and catalytic converter exits, preventing blowouts. The straight-through, perforated-core resonator and muffler design eliminates internal backpressure spikes without introducing high-RPM drone. By accelerating exhaust gas velocity away from the exhaust ports, this system promotes more efficient cylinder evacuation during valve overlap on the naturally aspirated SOHC i-VTEC platform.\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;\"\u003e2006-2011 Honda Civic\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;\"\u003e\n\u003cstrong\u003eR18A1\u003c\/strong\u003e \/ \u003cstrong\u003eFA1\u003c\/strong\u003e (Sedan), \u003cstrong\u003eFG1\u003c\/strong\u003e (Coupe)\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;\"\u003e140 hp \/ 128 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\u003e2006-2011 Honda Civic DX (1.8L L4 - \u003cstrong\u003eFA1\u003c\/strong\u003e \/ \u003cstrong\u003eFG1\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003e2006-2011 Honda Civic LX (1.8L L4 - \u003cstrong\u003eFA1\u003c\/strong\u003e \/ \u003cstrong\u003eFG1\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003e2006-2011 Honda Civic EX (1.8L L4 - \u003cstrong\u003eFA1\u003c\/strong\u003e \/ \u003cstrong\u003eFG1\u003c\/strong\u003e)\u003c\/li\u003e\n  \u003cli\u003e2009-2011 Honda Civic LX-S (1.8L L4 - \u003cstrong\u003eFA1\u003c\/strong\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the FA1 and FG1 Civic?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2006-2011 Honda Civic equipped with the \u003cstrong\u003eR18A1\u003c\/strong\u003e 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 downstream of all primary and secondary O2 sensors, it will not disturb emissions readings or trigger diagnostic trouble codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Honda Acoustic and Flow Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for the high-revving demands of Honda's legendary valvetrain engineering, this cat-back delivers clean flow dynamics, razor-sharp throttle response, and a deep exhaust note without sacrificing daily-driver cabin acoustics.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50622416781560,"sku":"DS-EMJ3XZX89","price":247.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/cat-back-exhaust-for-honda-civic-2006-2011-1-8l-1.jpg?v=1790264709","url":"https:\/\/performancechiptuning.com\/products\/cat-back-exhaust-for-honda-civic-2006-2011-1-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}