{"product_id":"cat-back-exhaust-for-nissan-sentra-se-r-2007-2012-2-5l","title":"Cat Back Exhaust for Nissan Sentra SE-R (2007-2012) 2.5L","description":"\u003ch2\u003eHigh-Flow Cat Back Exhaust for 2007-2012 Nissan Sentra\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Cat Back Exhaust system replaces the restrictive factory exhaust on the 2007-2012 Nissan Sentra SE-R to reduce exhaust backpressure, optimize pulse scavenging, and increase exhaust gas velocity.\u003c\/p\u003e\u003ch3\u003eThe Stock Nissan Sentra Exhaust Restriction and Acoustic Choke\u003c\/h3\u003e\u003cp\u003eThe factory exhaust routing on the \u003cstrong\u003eB16\u003c\/strong\u003e chassis utilizes narrow-diameter, crush-bent aluminized tubing mated to heavily baffled chambered mufflers and pre-silencers. This OEM configuration creates significant parasitic backpressure as exhaust gas volume expands under load from the naturally aspirated \u003cstrong\u003eQR25DE\u003c\/strong\u003e powerplant. The corrugated transitions and tight bends disrupt laminar exhaust flow, causing turbulence that impedes cylinder evacuation during valve overlap and accelerates thermal buildup upstream of the catalytic converter.\u003c\/p\u003e\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\u003cp\u003eEngineered as a direct bolt-on upgrade, this cat-back system replaces restrictive factory pipework with mandrel-bent T304 stainless steel tubing to maintain uniform internal diameter across all radii. Precision TIG-welded flanges mate directly to OEM mounting provisions, utilizing heavy-duty hanger brackets that prevent lateral deflection under hard cornering. The inclusion of a straight-through perforated-core resonator dampens low-frequency cabin drone while smoothing acoustic pulses, yielding reduced thermal load at the cylinder head and optimizing volumetric efficiency across the mid-to-high RPM range.\u003c\/p\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\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;\"\u003e2007-2012 Nissan Sentra\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;\"\u003eQR25DE \/ B16\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;\"\u003e177-200 hp \/ 172-180 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\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2007 Nissan Sentra SE-R 2.5L 4-Cylinder\u003c\/li\u003e\n\u003cli\u003e2008 Nissan Sentra SE-R 2.5L 4-Cylinder\u003c\/li\u003e\n\u003cli\u003e2009 Nissan Sentra SE-R 2.5L 4-Cylinder\u003c\/li\u003e\n\u003cli\u003e2010 Nissan Sentra SE-R 2.5L 4-Cylinder\u003c\/li\u003e\n\u003cli\u003e2011 Nissan Sentra SE-R 2.5L 4-Cylinder\u003c\/li\u003e\n\u003cli\u003e2012 Nissan Sentra SE-R 2.5L 4-Cylinder\u003c\/li\u003e\n\u003cli\u003e2007-2012 Nissan Sentra SE-R Spec V 2.5L 4-Cylinder\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDoes this fit the B16 Sentra?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2007-2012 Nissan Sentra equipped with the QR25DE engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this cat-back exhaust trigger a Check Engine Light (CEL)?\u003c\/strong\u003e\u003cbr\u003e No, because this system bolts downstream of the factory catalytic converters, secondary O2 sensor readings remain completely unaffected.\u003c\/p\u003e\u003ch3\u003eThe Nissan JDM Caliber\u003c\/h3\u003e\u003cp\u003eEngineered for high-revving four-cylinder applications, this cat-back system delivers an aggressive, resonant exhaust tone without abrasive drone while liberating exhaust flow to complement bolt-on intake and header modifications.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50622414192888,"sku":"DS-E336XIB25","price":276.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/cat-back-exhaust-for-nissan-sentra-se-r-2007-2012-2-5l-1.jpg?v=1790264613","url":"https:\/\/performancechiptuning.com\/products\/cat-back-exhaust-for-nissan-sentra-se-r-2007-2012-2-5l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}