{"product_id":"catalytic-converter-for-volvo-xc90-2005-2011-4-4l-rear","title":"Catalytic Converter for Volvo XC90 (2005-2011) 4.4L Rear","description":"\u003ch2\u003eDirect-Fit Rear Catalytic Converter for 2005-2011 Volvo XC90\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The direct-fit rear catalytic converter replaces degraded factory emissions equipment on the 2005-2011 XC90 to clear catalyst efficiency trouble codes and restore exhaust scavenging.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Volvo XC90 Catalytic Converter Degradation\u003c\/h3\u003e\n\u003cp\u003eThe transversal packaging of the \u003cstrong\u003eB8444S\u003c\/strong\u003e 60-degree V8 in the \u003cstrong\u003eP2\u003c\/strong\u003e platform exposes downstream emissions components to intense thermal cycling and tight bend radiuses. Over time, the stock rear converter suffers from washcoat depletion, carbon-fouled ceramic substrates, and structural fatigue at the flex joint. This exhaust restriction increases backpressure against the cylinder heads, leading to downstream O2 sensor fault codes (such as P0420\/P0430), elevated exhaust gas temperatures (EGT), and noticeable power loss across the midrange.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a bolt-on assembly, this rear replacement features heavy-gauge 409 stainless steel tubing coupled with a reinforced double-braided interlock flex pipe section to isolate engine rock. The internal high-flow ceramic substrate is washcoated with balanced precious metal loadings (platinum, palladium, rhodium) to ensure rapid light-off and stoichiometric emissions reduction. Mandrel-bent transitions eliminate exhaust turbulence, matching factory exhaust velocity without requiring cutting, welding, or custom fabrication to the factory hangars.\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;\"\u003e2005-2011 Volvo XC90\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;\"\u003eB8444S 4.4L V8 \/ P2\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;\"\u003e311 hp \/ 325 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;\"\u003e6267\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2005 Volvo XC90 4.4L V8 (AWD)\u003c\/li\u003e\n  \u003cli\u003e2006 Volvo XC90 4.4L V8 (AWD \/ Ocean Race)\u003c\/li\u003e\n  \u003cli\u003e2007 Volvo XC90 4.4L V8 (AWD \/ Sport)\u003c\/li\u003e\n  \u003cli\u003e2008 Volvo XC90 4.4L V8 (AWD)\u003c\/li\u003e\n  \u003cli\u003e2009 Volvo XC90 4.4L V8 (AWD \/ R-Design)\u003c\/li\u003e\n  \u003cli\u003e2010 Volvo XC90 4.4L V8 (AWD \/ R-Design)\u003c\/li\u003e\n  \u003cli\u003e2011 Volvo XC90 4.4L V8 (AWD \/ R-Design)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the P2 XC90?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2005-2011 Volvo XC90 equipped with the B8444S engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this direct-fit unit trigger a Check Engine Light (CEL)?\u003c\/strong\u003e\u003cbr\u003e No, it features high-efficiency catalytic washcoats calibrated to satisfy European onboard diagnostic parameters without post-cat O2 sensor errors.\u003c\/p\u003e\n\n\u003ch3\u003eThe Volvo Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEuropean platforms require tight tolerances to maintain closed-loop fuel trims without triggering diagnostic trouble codes. This unit delivers factory-calibrated backpressure and high-integrity sealing to preserve the smooth, sophisticated powerband expected from your luxury Swedish SUV.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50501669978360,"sku":"DS-ED8FUD9AS","price":180.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/catalytic-converter-for-volvo-xc90-2005-2011-4-4l-rear-1.jpg?v=1789329312","url":"https:\/\/performancechiptuning.com\/fr\/products\/catalytic-converter-for-volvo-xc90-2005-2011-4-4l-rear","provider":"Performance Chip Tuning","version":"1.0","type":"link"}