Size Chart
×
SKU: S5520409 / UPC: 882963111067
Outfit your 2004-2006 Jeep Wrangler TJ Unlimited's exhaust with the MBRP S5520409 cat-back system, engineered for direct bolt-on installation that unlocks noticeable gains in horsepower and torque while delivering a deep, aggressive exhaust note perfect for off-road adventures and daily drives. This single-exit setup routes 2.5-inch mandrel-bent tubing from the catalytic converter back, paired with a high-flow Race Profile muffler that reduces backpressure, lowers exhaust temperatures, and enhances overall engine efficiency for better throttle response and fuel economy compared to stock configurations. Built from durable T409 stainless steel, it withstands harsh conditions like salt, mud, and rough terrain without compromising flow or sound quality, making it the reliable pick for Wrangler owners seeking proven dyno-tested improvements without the hassle of custom fabrication.
Precise Vehicle Fitment
Notes: Utilizes factory hanger locations for a seamless fit; verify clearance for aftermarket fuel tank skid plates, as some may require minor adjustments
Complete Kit Contents
This all-in-one exhaust kit includes everything needed for a straightforward installation:
Key Specifications
Easy Installation and Long-Term Support
Bolt this system on using basic hand tools in under two hours – start by removing the stock muffler and tailpipe, secure the new muffler to the existing flange at 45 lb-ft torque, align the tailpipe with the clamp, and mount the hanger to the frame hole above it. Welded hangers ensure vibration-free alignment, and the design avoids welding or cutting for a reversible upgrade. Backed by a lifetime warranty against material and workmanship defects for the original owner (excludes surface rust, abuse, or improper install), it's crafted in North America to handle real-world demands.
For 2004-2006 Jeep Wrangler TJ Unlimited owners upgrading from factory exhaust, the MBRP S5520409 stands out with its balance of power gains, rugged build, and hassle-free setup.
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2006 | Jeep | Wrangler | Unlimited |
| 2005-2006 | Jeep | Wrangler | Unlimited Rubicon |
A catback exhaust system replaces everything from the catalytic converter back, covering the mid pipe, muffler, and tailpipe section in one bolt on upgrade. This collection covers catback systems for trucks, Jeeps, muscle cars, imports, and performance SUVs, giving you a straightforward way to improve sound, exhaust flow, and rear end styling without touching the factory catalytic converters or front pipe. Catback systems are available in stainless steel and titanium construction, with dual rear exit, single exit, and quad tip configurations, and a range of sound levels from mild touring tone to aggressive track character. Whether you want a deeper daily driver sound or a full track ready exhaust note, you will find a matched system for your platform here. What This Category Covers This collection includes complete catback exhaust systems, cat-back kits, dual rear exit systems, axle back adjacent catback upgrades, stainless steel and titanium exhaust systems, and street, tourin...
View Catback Products
Performance exhaust systems for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop cat-back systems, axle-back systems, turbo-back systems, headers, downpipes, mid-pipes, mufflers, resonators, catalytic converters, exhaust tips, exhaust valve controllers, oxygen sensors, exhaust brakes, and motorcycle and powersports exhausts for Mustang, Camaro, Challenger, Corvette, Silverado, and Super Duty platforms. Every product is filterable by exhaust position, material, pipe diameter, and vehicle year, make, model, and trim so the correct fitment ships the first time. Black Ops Auto Works carries 7,441 exhaust SKUs across every position of the exhaust system. What This Category Covers Exhaust upgrades change sound, appearance, and in some cases power. Exhaust fitment depends on engine, drivetrain, and factory exit position, so confirm the exact platform before ordering any exhaust component. Exhaust Position Cat-back, axle-back, turbo-back, and header-back systems e...
View Exhaust Systems Products
MBRP exhaust systems for trucks, Jeeps, SUVs, and performance cars are stocked at Black Ops Auto Works. Shop MBRP cat-back systems, axle-back systems, filter-back diesel exhaust, exhaust brakes, downpipes, mid-pipes, mufflers, exhaust tips, and universal tubing and clamps for Ford F-150, Ford Ranger and Ranger Raptor, Jeep Wrangler, Jeep Grand Cherokee SRT, Dodge Challenger HEMI, RAM RHO, Toyota 4Runner and Land Cruiser, Chevy Tahoe, Cadillac Escalade, and Corvette platforms. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 1,059 MBRP SKUs across cat-back, axle-back, filter-back, and diesel exhaust categories. What This Brand Covers MBRP built its reputation in the diesel truck market before expanding into gas trucks, Jeeps, muscle cars, and sports cars. The lineup spans Armor BLK and Armor Pro coated systems, T304 and T409 stainless steel cat-backs, aluminized steel value system...
View MBRP Products