{"product_id":"exhaust-headers-for-jeep-wrangler-2007-2011-3-8l-engine","title":"Exhaust Headers for Jeep Wrangler (2007-2011) 3.8L Engine","description":"\u003ch2\u003eT-304 Stainless Steel Exhaust Headers for 2007-2011 Jeep Wrangler (3.8L EGH\/JK)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Replaces the restrictive factory cast-iron manifolds with high-flow T-304 stainless steel headers to reduce backpressure and improve exhaust scavenging on the 3.8L V6 engine.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Wrangler Performance Bottleneck\u003c\/h3\u003e\n\u003cp\u003eThe factory 3.8L EGH engine in the early JK Wrangler is notorious for being underpowered, a problem exacerbated by heavy, restrictive cast-iron exhaust manifolds. These OEM units feature narrow, irregular internal runners and a rough surface finish that creates significant turbulence and backpressure. Over time, the constant thermal cycling of off-road use leads to heat soak and eventual cracking of the cast iron, resulting in audible exhaust leaks and loss of low-end torque. By forcing exhaust pulses to collide in a cramped collector, the stock system prevents the engine from breathing efficiently, trapping heat near the cylinder heads and limiting the volumetric efficiency of the 3.8L V6.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThese headers are engineered with a 6-2 piping design to streamline exhaust flow and maximize scavenging effects. Constructed from high-grade T-304 stainless steel, the 1.5-inch primary tubes are mandrel-bent to maintain a constant diameter, ensuring smooth gas velocity from the cylinder head to the collector. The 7\/16-inch thick head flanges are precision-machined to resist warping under extreme temperatures, while the 3\/8-inch outlet flanges provide a secure, leak-free connection to the rest of the system. The 2.25-inch outlet size allows for a high-volume transition, effectively reducing EGTs (Exhaust Gas Temperatures) and allowing the engine to reach its full power potential without the parasitic loss of restrictive factory plumbing.\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;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e2007-2011 Jeep Wrangler\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eEngine \/ Chassis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e3.8L EGH V6 \/ JK Chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eStock Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003e202 hp \/ 237 lb-ft (Approx)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eNA105FU18LL207NA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding:8px;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:8px;\"\u003eT-304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFor 2007-2012 Jeep Wrangler JK 3.8L (Fits Models with 3.8L V6 EGH Engines ONLY)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Jeep Off-Road Standard\u003c\/h3\u003e\n\u003cp\u003eBuilt for the rigors of the trail, these headers provide the thermal durability and structural integrity required for low-range crawling and heavy towing. The corrosion-resistant T-304 stainless steel ensures longevity against mud, water, and road salt, providing a reliable performance upgrade that enhances the 3.8L Wrangler's utility and exhaust note without the fragility of factory cast components.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":47996378480888,"sku":"DS-EJ9DIAI99","price":199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/exhaust-headers-for-jeep-wrangler-2007-2011-3-8l-engine-1.webp?v=1771286462","url":"https:\/\/performancechiptuning.com\/products\/exhaust-headers-for-jeep-wrangler-2007-2011-3-8l-engine","provider":"Performance Chip Tuning","version":"1.0","type":"link"}