{"title":"Jeep","description":"","products":[{"product_id":"amvirtuo-jeep-wrangler-cherokee-exhaust-headers","title":"Exhaust Headers Polished Stainless Steel for 1991-1999 Jeep Wrangler Cherokee Grand Cherokee YJ TJ XJ ZJ 4.0L","description":"\n\u003c!-- H2: Key Features --\u003e\n\u003ch2\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/h2\u003e\n\u003cdiv class=\"key-features\"\u003e\n\u003ch3\u003e\u003cb\u003eCompatibility\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eThese exhaust manifolds are designed for 1991-1999 Jeep Wrangler YJ\/TJ, Cherokee XJ, and Grand Cherokee ZJ with the legendary 4.0L inline-six engine. Designed as a vehicle-specific replacement for factory exhaust manifolds.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003ePerformance Gains\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eThese Jeep Wrangler headers are designed to support improved exhaust flow and reduced backpressure by improving exhaust flow and reducing backpressure. The optimized design enhances throttle response for both street and off-road driving.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eT304 Stainless Steel\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eMandrel-bent shorty headers made from 304 stainless steel resist corrosion and high heat, delivering long-term durability for daily driving and off-road use. The polished finish looks great and provides additional protection.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eDesigned for vehicle-specific installation\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eCNC-machined flanges and factory-matching bolt locations ensure these Jeep Cherokee headers install without modifications. Designed to solve the common cracked manifold problem on Jeep 4.0L engines.\u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eTIG Welded\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003ePrecision TIG-welded joints create gap-free seams that resist vibration and high temperatures, reducing the chance of cracks or leaks. Includes all necessary gaskets and hardware for installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- H2: Description --\u003e\n\u003ch2\u003e\u003cb\u003eDescription\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eThe AMC\/Jeep 4.0L inline-six engine is legendary for its torque and reliability. Our 4.0L Jeep\u003cb\u003e \u003c\/b\u003eexhaust headers help unlock even more performance from this robust powerplant. Whether you're crawling trails in your Wrangler, exploring backroads in your Cherokee, or daily driving your Grand Cherokee, these headers deliver measurable improvements.\u003c\/p\u003e\n\u003cp\u003eFactory exhaust manifolds on Jeep 4.0L engines are known to crack over time due to thermal stress. Our TJ headers replace those problematic cast iron manifolds with durable stainless steel construction that withstands the extreme conditions Jeep owners put their vehicles through.\u003c\/p\u003e\n\u003cp\u003eThe Jeep YJ exhaust headers feature optimized primary tube lengths and smooth internal transitions that improve mid-range torque - exactly what you need when navigating challenging terrain or merging onto highways. The polished stainless steel finish not only looks great but also provides excellent corrosion resistance.\u003c\/p\u003e\n\u003cp\u003eAt AMVirtuo, we believe performance upgrades shouldn't break the bank. These \u003cb\u003eJ\u003c\/b\u003eeep Grand Cherokee headers offer professional-grade quality at a price that respects your budget, backed by our commitment to helping Jeep enthusiasts get more from their vehicles.\u003c\/p\u003e\n\u003c!-- H2: Vehicle Fitment --\u003e\n\u003ch2\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eVehicle\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep Wrangler YJ\u003c\/td\u003e\n\u003ctd\u003e1991-1995\u003c\/td\u003e\n\u003ctd\u003e4.0L I6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep Wrangler TJ\u003c\/td\u003e\n\u003ctd\u003e1996-1999\u003c\/td\u003e\n\u003ctd\u003e4.0L I6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep Cherokee XJ\u003c\/td\u003e\n\u003ctd\u003e1991-1999\u003c\/td\u003e\n\u003ctd\u003e4.0L I6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJeep Grand Cherokee ZJ\u003c\/td\u003e\n\u003ctd\u003e1993-1999\u003c\/td\u003e\n\u003ctd\u003e4.0L I6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv class=\"warning\"\u003e\n\u003cp class=\"warning-title\"\u003e⚠️ Important Fitment Notes\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eEngine Compatibility:\u003c\/b\u003e Designed for Jeep 4.0L inline-six (SOHC) engines only. Not compatible with 2.5L or 4-cylinder engines.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCracked Manifold Solution:\u003c\/b\u003e These stainless steel headers are designed to replace the problematic factory cast iron manifolds that commonly crack on Jeep 4.0L engines.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eVerify local regulations before purchase.:\u003c\/b\u003e T304 stainless steel construction resists corrosion from mud, water crossings, and road salt that off-road vehicles frequently encounter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- H2: Technical Specifications --\u003e\n\u003ch2\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeader Type\u003c\/td\u003e\n\u003ctd\u003eShorty \/ Direct Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet Diameter\u003c\/td\u003e\n\u003ctd\u003e1.50\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutlet Diameter\u003c\/td\u003e\n\u003ctd\u003e2.125\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eT304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface Finish\u003c\/td\u003e\n\u003ctd\u003ePolished\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWelding Process\u003c\/td\u003e\n\u003ctd\u003eTIG Welded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Type\u003c\/td\u003e\n\u003ctd\u003eCNC Machined\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGasket Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- H2: Headers vs Stock Manifolds --\u003e\n\u003ch2\u003e\u003cb\u003eHeaders vs Stock Exhaust Manifolds\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eIf you're debating between upgrading to headers or replacing with factory-style manifolds, here's what you need to know:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eStock Manifolds\u003c\/th\u003e\n\u003cth\u003eAMVirtuo Headers\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrack Resistance\u003c\/td\u003e\n\u003ctd\u003eProne to cracking\u003c\/td\u003e\n\u003ctd\u003eExcellent (stainless steel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust Flow\u003c\/td\u003e\n\u003ctd\u003eRestrictive casting\u003c\/td\u003e\n\u003ctd\u003eOptimized for performance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Gains\u003c\/td\u003e\n\u003ctd\u003eStock output\u003c\/td\u003e\n\u003ctd\u003eSupports improved exhaust flow and throttle response; actual results vary\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorrosion Resistance\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eHeavy cast iron\u003c\/td\u003e\n\u003ctd\u003eLighter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cb\u003eThe Bottom Line:\u003c\/b\u003e Factory cast iron manifolds on Jeep 4.0L engines are known to crack over time, leading to exhaust leaks and reduced performance. Upgrading to stainless steel headers improves exhaust flow, resolves the cracked manifold problem, and delivers long-lasting durability.\u003c\/p\u003e\n\u003c!-- H2: Installation Notes --\u003e\n\u003ch2\u003e\u003cb\u003eInstallation Notes\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eProfessional installation is recommended for optimal results. Here are important considerations for your \u003cb\u003eJeep 4.0 headers\u003c\/b\u003e installation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDirect Replacement:\u003c\/b\u003e Minor adjustments may be needed depending on vehicle condition and setup. Uses factory mounting points and hardware locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOxygen Sensor:\u003c\/b\u003e Compatible with factory oxygen sensor locations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCheck Clearance:\u003c\/b\u003e Verify clearance with aftermarket accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePost-Installation Check:\u003c\/b\u003e After installation, start the engine and listen for exhaust leaks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"highlight\"\u003e\n\u003cp\u003e\u003cb\u003ePro Tip:\u003c\/b\u003e According to Jeep enthusiasts, replacing cracked manifolds with stainless steel headers is one of the best upgrades for 4.0L engines. The improved exhaust flow provides noticeable gains in throttle response and fuel economy. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- H3: What's Included --\u003e\n\u003ch3\u003e\u003cb\u003eWhat's Included\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x Exhaust Header Assembly\u003c\/li\u003e\n\u003cli\u003eMounting Gaskets\u003c\/li\u003e\n\u003cli\u003eInstallation Hardware\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"AMVirtuo","offers":[{"title":"Default Title","offer_id":48137890758756,"sku":"AM-33003","price":159.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/1889\/8276\/files\/1_dd7b40ab-a49f-4517-b573-a5684288c048.jpg?v=1775467758"}],"url":"https:\/\/avomotor.com\/es\/collections\/jeep.oembed","provider":"AMVirtuo MOTOR","version":"1.0","type":"link"}