{"product_id":"cat-back-exhaust-for-jeep-grand-cherokee-2005-2010-4-7l-5-7l","title":"Cat Back Exhaust for Jeep Grand Cherokee (2005-2010) 4.7L 5.7L","description":"\u003ch2\u003eDirect-Fit Performance Cat Back Exhaust for 2005-2010 Jeep Grand Cherokee\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 2005-2010 Jeep Grand Cherokee to reduce exhaust backpressure, improve scavenging efficiency, and deliver a cleaner V8 exhaust note.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Jeep Grand Cherokee Exhaust Flow Bottlenecks\u003c\/h3\u003e\n\u003cp\u003eFrom the factory, the \u003cstrong\u003eWK\u003c\/strong\u003e platform relies on crush-bent aluminized tubing paired with an excessively baffled, chambered OEM muffler and restrictive resonator assembly. Over extended heat cycles and rough terrain exposure, the thin factory piping deteriorates, while internal baffling creates turbulent boundary-layer separation. This excessive backpressure prevents the \u003cstrong\u003e4.7L PowerTech\u003c\/strong\u003e and \u003cstrong\u003e5.7L HEMI\u003c\/strong\u003e V8 engines from evacuating spent combustion gases efficiently, trapping thermal energy in the exhaust tract and choking off low-end torque during sustained hill climbs or heavy towing applications.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-replacement cat-back system solves flow stagnation by utilizing smooth, mandrel-bent \u003cstrong\u003eAluminized Steel\u003c\/strong\u003e tubing to maintain uniform cross-sectional diameter through every radius. The low-restriction performance muffler reduces acoustic harshness without chamber turbulence, accelerating exhaust velocity away from the catalytic converters. Engineered specifically for the \u003cstrong\u003eWK\u003c\/strong\u003e chassis, it includes precision pre-welded hangers and heavy-gauge flanges that drop into factory mounting locations with zero custom fabrication required, providing robust structural integrity against road debris and trail vibration.\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;\"\u003e2005-2010 Jeep Grand Cherokee\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;\"\u003e4.7L PowerTech \u0026amp; 5.7L HEMI \/ WK\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;\"\u003e235–357 hp \/ 305–389 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-CAT1253\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2005-2010 Jeep Grand Cherokee 4.7L V8 (EVA \/ EVE Engine)\u003c\/li\u003e\n  \u003cli\u003e2005-2010 Jeep Grand Cherokee 5.7L HEMI V8 (EZB \/ EZD Engine)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the WK Grand Cherokee?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2005-2010 Jeep Grand Cherokee equipped with the \u003cstrong\u003e4.7L PowerTech\u003c\/strong\u003e or \u003cstrong\u003e5.7L HEMI\u003c\/strong\u003e V8 engine.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill installing this cat-back system trigger a Check Engine Light (CEL)?\u003c\/strong\u003e\u003cbr\u003e No, because this system bolts downstream of the factory catalytic converters, oxygen sensor readings remain unaffected and no tune is required.\u003c\/p\u003e\n\n\u003ch3\u003eThe Jeep Trail Caliber\u003c\/h3\u003e\n\u003cp\u003eBuilt to handle harsh off-camber articulation and demanding trail duties, this assembly provides the structural resilience and thermal dissipation necessary to protect underbody clearances while hauling or crawling off-road.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50607650603256,"sku":"DS-EFAJDKFAW","price":193.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/cat-back-exhaust-for-jeep-grand-cherokee-2005-2010-4-7l-5-7l-1.jpg?v=1790091396","url":"https:\/\/performancechiptuning.com\/es\/products\/cat-back-exhaust-for-jeep-grand-cherokee-2005-2010-4-7l-5-7l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}