{"product_id":"mbrp-04-06-jeep-wrangler-tj-unlimited-4-0l-i-6-cat-back-single-aluminized-exhaust","title":"MBRP 04-06 Jeep Wrangler (TJ) Unlimited 4 0L I-6 Cat Back Single Aluminized Exhaust","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e: S5520AL \/ \u003cstrong\u003eUPC\u003c\/strong\u003e: 882963111074\u003c\/p\u003e\n\u003ch4 class=\"p1\"\u003e\u003cb\u003eMBRP Cat-Back Exhaust System for 2004-2006 Jeep Wrangler TJ Unlimited 4.0L I-6\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eTransform your 2004-2006 Jeep Wrangler TJ Unlimited with the MBRP S5520AL 2.5-inch cat-back exhaust system, engineered for drivers seeking noticeable gains in power, torque, and sound from their 4.0L inline-six engine. This single-side, turndown exit setup replaces the factory exhaust after the catalytic converter, delivering a deep, aggressive tone that echoes like a track-ready machine while channeling exhaust flow for real-world improvements in throttle response and pulling strength.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eBuilt from 16-gauge heavy-duty aluminized steel, it resists corrosion and withstands road debris, ensuring lasting performance in dry conditions without the higher cost of premium materials.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eCompared to stock systems or other aftermarket options, the S5520AL stands out by providing up to 18 horsepower and 28 ft\/lbs of torque, plus 1-2 mpg better fuel economy, all while maintaining direct bolt-on compatibility that simplifies the upgrade process.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eDrivers choose this system for its balance of aggressive exhaust note, measurable engine efficiency, and straightforward setup that gets you back on the trail faster.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eVehicle Fitment\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eYears:\u003c\/b\u003e 2004-2006\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eMake:\u003c\/b\u003e Jeep\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eModel:\u003c\/b\u003e Wrangler Unlimited (TJ), including Rubicon variants\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eEngine:\u003c\/b\u003e 4.0L I-6 (gasoline only)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eNotes:\u003c\/b\u003e Fits 2-door Unlimited models, direct replacement after catalytic converter, no modifications to engine or cab required.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eWhat's Included in the Purchase\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis complete cat-back kit arrives in one box with everything needed for installation:\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e2.5-inch mandrel-bent aluminized steel tubing (race profile design for smooth flow)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eSingle straight-through muffler for reduced backpressure\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eTurndown exit tailpipe (single rear exit configuration)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e3.5-inch diameter tip (1 included)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eFactory-style hangers and brackets for direct fit\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eStainless steel clamps and hardware\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eInstallation instructions (no additional parts required)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eKey Specifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003ePart Number:\u003c\/b\u003e S5520AL\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eUPC:\u003c\/b\u003e 882963111074\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eMaterial:\u003c\/b\u003e 16-gauge aluminized steel\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003ePipe Diameter:\u003c\/b\u003e 2.5 inches\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eExit Style:\u003c\/b\u003e Single rear, turndown\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eMuffler Type:\u003c\/b\u003e Straight-through (1 included)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eTip Quantity:\u003c\/b\u003e 1 (3.5-inch outlet)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eCutting Required:\u003c\/b\u003e Yes (minor adjustments possible for perfect alignment)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eWarranty:\u003c\/b\u003e 3-year limited\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eCountry of Origin:\u003c\/b\u003e North America-made for quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eInstallation Details\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eBolt this system on using basic hand tools in about 1-2 hours. It connects directly to factory hangers post-catalytic converter, with mandrel bends ensuring no restrictions in flow. Professional installation recommended if you're new to exhaust work, but the included hardware makes it accessible for weekend mechanics.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eShipping Information\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003ePart Weight:\u003c\/b\u003e 28 lbs\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eShipping Box Dimensions:\u003c\/b\u003e 42 in. L x 17 in. W x 8 in. H\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eEquip your Jeep Wrangler TJ Unlimited with the MBRP S5520AL today for a exhaust upgrade that amplifies every drive with added muscle and a signature rumble that turns heads on and off the road.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cbr\u003e\u003cstrong\u003eThis Part Fits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth width=\"100\" align=\"left\"\u003eYear\u003c\/th\u003e\n\u003cth width=\"125\" align=\"left\"\u003eMake\u003c\/th\u003e\n\u003cth width=\"150\" align=\"left\"\u003eModel\u003c\/th\u003e\n\u003cth width=\"80\" align=\"left\"\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2006\u003c\/td\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eWrangler\u003c\/td\u003e\n\u003ctd\u003eUnlimited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005-2006\u003c\/td\u003e\n\u003ctd\u003eJeep\u003c\/td\u003e\n\u003ctd\u003eWrangler\u003c\/td\u003e\n\u003ctd\u003eUnlimited Rubicon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"MBRP","offers":[{"title":"Default Title","offer_id":39659285938255,"sku":"MBRPS5520AL","price":269.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/SKU_S5520AL_UPC_882963111074.jpg?v=1760546785","url":"https:\/\/www.blackopsautoworks.com\/products\/mbrp-04-06-jeep-wrangler-tj-unlimited-4-0l-i-6-cat-back-single-aluminized-exhaust","provider":"Black Ops Auto Works","version":"1.0","type":"link"}