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If you want clearer tone, better exhaust flow, and a modest bump in throttle response for your 2018-present Jeep Wrangler, a cat-back exhaust system is one of the most effective bolt-on upgrades. This guide covers the top shortlisted cat-back options built for the Wrangler JL and JLU era and compatible 2018-plus platforms, explaining how they affect sound, fit, and durability without sacrificing emissions or drivability. We evaluated systems that balance fitment to Wrangler frames, materials that resist corrosion on off-road rigs, and installation demands that a backyard mechanic or shop can handle. Below are our top picks and a breakdown of the criteria used to select them, followed by practical notes on installation, noise, and long-term ownership considerations.
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Top Picks at a Glance
| Best Overall The best all-around choice for most situations | MagnaFlow Overland Series Cat-Back Performance Exhaust System (19592) |  |
| Best Quality Built to a higher standard if you want something more solid | Borla S-Type Cat-Back Exhaust System (Model 140634) |  |
| Best Value The sweet spot between price and what you get | Banks Engineering 51315-B Stainless Steel Cat-Back Exhaust System |  |
| Highest Rated A top-rated pick with lots of positive feedback | Flowmaster Outlaw Extreme High Clearance Cat-Back Exhaust System, 3.0" 409 Stainless Steel |  |
| Most Popular A crowd favorite that many people choose with confidence | MagnaFlow Street Series Cat-Back Performance Exhaust System (Black Coated) |  |
1. MagnaFlow Overland Series Cat-Back Performance Exhaust System (19592)
| Installation Type | Bolt-On |
|---|---|
| Automotive Fit Type | Vehicle Specific Fit |
| Material Type | Stainless Steel |
| Main Piping Diameter | 2.5" |
| Exit Style | Single Straight Driver Side Rear |
The MagnaFlow Overland Series cat-back replaces the stock rear muffler layout with a single straight-through muffler and 2.5" mandrel-bent piping to move the muffler closer to the undercarriage and route the exit at the driver-side rear. It is a bolt-on, vehicle-specific system manufactured from stainless steel for corrosion resistance and includes band-clamp inlet connections and hangers for installation. In real-world use the design raises ground clearance and departure angle, making it better for off-road trails and for owners who want to free up space at the rear for accessories. MagnaFlow’s No Drone Technology aims to keep cruising noise pleasant while still delivering a deeper, more aggressive tone when accelerating. Practical benefits include dyno-proven performance gains, durable construction, and compatibility with common bolt-on modifications. Limitations to note are that the system is tuned around sound and clearance rather than extreme power gains, and some buyers report variable shipping or cosmetic condition issues on arrival; professional installation is recommended to ensure proper fit and alignment.
Best for: Buyers who want a balanced upgrade that improves sound, underbody packaging, and off-road clearance while keeping cruising comfort for daily driving.
Less Ideal for: If your priority is maximum horsepower or a valved/active exhaust sound control system, this tuned, fixed-layout cat-back is not the best choice.
- Vehicle-specific bolt-on fit designed for 2018–2022 Jeep Wrangler JL for simpler installation
- Stainless steel construction for corrosion resistance and longer life
- Overland high-clearance routing and driver-side rear exit improves ground clearance and departure angle
- No Drone Technology reduces cabin droning at highway speeds while preserving a deeper exhaust note
- Primary gains are improved sound and clearance rather than large horsepower increases
- Some customers have reported arrival with cosmetic damage, so inspect packaging on receipt
Verdict: Choose this MagnaFlow Overland cat-back if you want a durable, bolt-on exhaust that raises ground clearance and delivers a deeper, drone-free tone for daily driving and trail use.
2. Borla S-Type Cat-Back Exhaust System (Model 140634)
| Material | T-304 Stainless Steel |
|---|---|
| System Type | S-Type Cat-Back |
| Configuration | Dual 2 in. into Single 2.5 in. |
| Exit | Dual left rear exit with climber turndown/turnout tip |
This Borla S-Type cat-back replaces the factory mid and rear sections with a dual-into-single layout that exits behind the crossmember, giving more rear clearance for off-road use. It is built from T-304 stainless steel with welded construction and includes connecting pipes, mufflers, hardware, and a climber turndown/turnout tip. Expect a deeper, refined rumble that is louder than stock but more controlled than aggressive aftermarket systems, with minimal cabin boom at cruise for most drivers. Installation is bolt-on for a clean fit but may require cutting the old exhaust and dealing with corroded fasteners on higher-mileage Jeeps, so plan extra time or shop help. The design tucks the system up to avoid contact during flex or rock crawling and can free up space for driveshaft clearance on lifted vehicles. This system focuses on sound and clearance rather than measurable power gains, and buyers should be ready for a moderately involved install on older vehicles.
Best for: Buyers who prioritize a tuned, muscular exhaust note and improved underbody clearance for trail use while keeping a reasonably quiet cruise tone.
Less Ideal for: Drivers seeking measurable horsepower gains or a very loud, aggressive exhaust should consider other performance options.
- T-304 stainless steel construction for corrosion resistance and long life
- Design relocates and tucks exhaust for improved rear clearance and off-road protection
- Signature Borla sound: deeper rumble without excessive cabin drone at cruise
- Includes all connecting pipes, mufflers, hardware, and turnout tip for a complete cat-back swap
- Installation can require cutting the old system and removing rusted hardware on higher-mileage vehicles
Verdict: Choose this Borla cat-back if you want a durable stainless system that tucks up for off-road clearance while delivering a refined, sporty exhaust note.
3. Banks Engineering 51315-B Stainless Steel Cat-Back Exhaust System
| Material Type | Stainless Steel |
|---|---|
| Installation Type | Bolt-On |
| Pipe size | 2.5" |
| Tip size | 3.75" |
This Banks cat-back replaces the factory rear section with a stainless-steel system meant for straightforward bolt-on installation. It is typically used to free up exhaust flow, sharpen throttle response, and add a deeper, more authoritative tone compared with stock plumbing. Notable features are the stainless-steel construction for corrosion resistance, a 2.5-inch pipe with a 3.75-inch tip, and a muffler chamber tuned for a mellow growl that ups midrange punch without becoming obnoxiously loud at cruise. Real-world benefits include easier installation for a home mechanic, a noticeable uptick in throttle responsiveness and exhaust note, and a usable tip length that avoids bumper interference. Limitations to expect are that some users report it louder than they prefer and minor fitment adjustments or extra clamps may be needed on certain chassis or hitch setups; this part is also a direct rear section replacement and does not address headers or catalytic converters for additional power gains.
Best for: Buyers who want a durable, bolt-on rear exhaust that sharpens throttle response and gives a refined growl without chasing maximum sound or peak power gains, prioritizing practical performance improvements and longevity.
Less Ideal for: Drivers seeking the quietest replacement or those wanting a complete performance overhaul that includes headers, cats, or tuning should look for more comprehensive systems instead.
- Stainless steel construction resists corrosion for longer service life
- Bolt-on installation designed for straightforward fitment without extensive modification
- 2.5-inch pipe and 3.75-inch tip improve exhaust flow and throttle response
- Muffler tuning produces a deep, pleasant tone that is not overly raspy at highway speeds
- May be louder than stock and louder than some buyers expect
- Some vehicles require minor fitment tweaks or additional clamps for perfect alignment
Verdict: A durable, easy-to-install stainless cat-back that improves midrange response and delivers a tasteful, deeper exhaust note for practical Jeep upgrades.
4. Flowmaster Outlaw Extreme High Clearance Cat-Back Exhaust System, 3.0" 409 Stainless Steel
| Inlet Connection Size | 3 Inches |
|---|---|
| Material Type | 409 Stainless Steel |
| Automotive Fit Type | Vehicle Specific Fit |
This Flowmaster Outlaw Extreme cat-back replaces the factory rear section with 3.0-inch mandrel-bent 409 stainless steel tubing and a performance muffler tuned for a deep, aggressive tone. It installs using factory hanger locations and includes the necessary hardware, so a competent home mechanic can complete the swap without welding. The 16-gauge tubing and 409 stainless construction resist corrosion better than mild steel and help preserve appearance and function in wet or salty environments. The dump-style single dump exit is routed for improved ground clearance, which is useful on trail obstacles. Expect stronger exhaust flow and a louder, throaty sound that complements spirited driving but may be intrusive in quiet neighborhoods. Fitment is vehicle-specific, so confirm it is for the 2018-present Wrangler JL 3.6L V6 before purchasing.
Best for: Buyers who prioritize durability and dependable fitment for a Wrangler JL and want a bolt-on exhaust that withstands off-road conditions while delivering stronger flow and a deeper sound.
Less Ideal for: Drivers seeking a subtle or quiet factory-like exhaust note, or those who need a universally quiet system for residential areas, should consider alternative quieter options.
- 409 stainless steel construction for improved corrosion resistance
- 3.0-inch mandrel-bent tubing to maintain exhaust flow for performance
- Uses factory hanger locations and includes hardware for straightforward installation
- Dump-style exit improves underbody ground clearance for off-road use
- Aggressive sound level may be too loud for daily urban driving or low-speed cruising
Verdict: Choose this Flowmaster kit if you want a durable, vehicle-specific cat-back that boosts exhaust flow and provides a deep, long-lasting sound suited to off-road use.
5. MagnaFlow Street Series Cat-Back Performance Exhaust System (Black Coated)
| Installation Type | Bolt-On |
|---|---|
| Material Type | Stainless Steel |
| Series | Street |
| Tip Diameter | 4" |
This MagnaFlow Street Series cat-back is a direct-fit system built for a plug-and-play replacement that emphasizes drivability and a deeper low-end tone without excessive volume. It is typically used as a bolt-on upgrade to improve exhaust flow, produce modest horsepower gains shown on dyno testing, and give the Jeep a more resonant but not intrusive sound both inside and outside the cabin. Notable features include full stainless steel construction with a black powder coat finish, straight-through mufflers for freer flow, and dual split rear tips that deliver a factory-quality appearance. The system is CNC manufactured for consistent fitment and includes the hardware needed for DIY installation, though installers should have basic tools and an assistant for alignment. Practical benefits are improved throttle response, a fuller exhaust note, and durable corrosion resistance; limitations include occasional fitment tweaks reported by some users and the fact that the black finish has a shorter warranty than the construction itself.
Best for: Buyers who value proven results and community feedback and want a dependable, direct-fit exhaust that improves sound and low-end response without being overly loud.
Less Ideal for: Drivers seeking an aggressive, race-level volume or a fully uncoated stainless finish for long-term cosmetic durability should consider other options.
- Dyno-proven design aimed at measurable power and improved exhaust flow
- Stainless steel construction with powder-coated finish for corrosion resistance
- Bolt-on vehicle-specific fit with included hardware for do-it-yourself installation
- Straight-through mufflers and dual tips deliver a deep but controlled street sound
- Black-coated finish carries a shorter one-year warranty compared with the lifetime construction coverage
- Some users report minor alignment or hanger clearance adjustments during installation
Verdict: A reliable, vehicle-specific cat-back that delivers dyno-backed gains and a deep but controlled street sound for buyers who prioritize proven performance and solid fitment.
Choosing the Right 2018-Present Jeep Wrangler Cat-back Exhaust System: Key Factors to Consider
Material and Corrosion Resistance
The exhaust material directly affects longevity on a Wrangler that sees mud, water, and road salt. Stainless steel alloys resist rust far better than plain mild steel, which helps preserve flow and prevents weld failures over time. Even among stainless options, wall thickness and whether tubing is 304 or 409 grade changes how well the system holds up under repeated heating cycles and off-road vibration. Coatings and ceramic finishes reduce surface rust and can reduce heat transfer to nearby components. For trail-driven Wranglers, consider systems with robust hangers and anti-rattle fittings since vibration accelerates wear. A cheaper, thinly made pipe might save money initially but will likely require replacement sooner, increasing lifetime cost and downtime.
Fitment and Chassis Compatibility (JL and JLU Notes)
Proper fitment matters more on a Wrangler than many vehicles because of the variety of off-road suspensions and bumper configurations owners run. Systems designed for 2018-present Wranglers should account for JL and JLU frame mounts, spare tire carriers, and commonly upgraded bumpers. When a product specifies JL or JLU compatibility, confirm it explicitly; this generation, beginning in 2018, has different hanger placements and tailpipe exits compared with earlier platforms. If you plan additional modifications such as a heavy steel bumper or larger spare tire, allow extra clearance for the tailpipe exit. Improperly fitted exhausts can contact suspension or bodywork during articulation, causing noise or damage. A system that matches factory hanger points and offers adjustability reduces risk of rubbing and simplifies installation.
Sound Character and In-Cabin Drone
Sound is often the primary reason owners swap to a cat-back system, but tone preferences vary. Some drivers want a deep, throaty growl under acceleration while keeping a civil idle and minimal drone at highway speeds. Others prefer a louder, raspier note for off-road presence. Evaluate systems based on muffler design, chambering, and whether the design prioritizes flow over sound attenuation. Drone at cruising speeds can make long drives unpleasant and may be amplified by hardtop enclosures or cab resonance. Look for designs with internal baffling or tuned mufflers that target unwanted frequencies. If you frequently carry passengers or use the vehicle for long trips, prioritize systems that reduce cabin drone while still delivering the desired performance character.
Performance Impact and Backpressure
A cat-back affects exhaust scavenging and backpressure, which influence throttle response and torque across the RPM band. Systems with larger diameter piping and smoother bends generally reduce backpressure and can free up modest power, particularly in higher RPM ranges. However, excessively large diameters can reduce low-end torque, which is important for a Wrangler used on trail or towing duties. Consider your driving style: street and trail use benefit from balanced designs that improve midrange response, while aggressive builds may favor higher-flow systems. Evaluate advertised flow improvements in the context of your engine and whether headers or tune work are planned, since gains from a cat-back alone are typically modest without complementary upgrades.
Installation Complexity and Hardware
Installation for most cat-back systems can be straightforward, but several factors affect complexity. Systems that use factory hangers and include all necessary clamps and gaskets reduce install time. Systems that require cutting, welding, or special brackets demand more skill and may necessitate a shop visit. Consider whether you want to reuse factory parts such as hangers or clamps, and whether the kit includes slip-fit joints or bolt-on flanges. Ease of removal for trail repairs is also important; designs that allow quick disassembly with common tools make roadside fixes easier. Factor in whether the installation will interfere with aftermarket bumpers, steps, or spare tire mounts.
Legal and Emissions Considerations
Local noise ordinances and emissions regulations can dictate which cat-back options are legal to use on public roads. Some systems retain the factory catalytic converter and emissions equipment while only replacing the piping and muffler; others may require retaining certain sensors or supplemental hardware to remain compliant. Before purchasing, check whether the system is listed as street-legal in your jurisdiction and whether any additional components are needed to meet regulations. Off-road-only parts can be suitable for trail use but may not be road-legal, which affects registration and inspection. Ensuring compliance up front prevents fines and keeps the vehicle usable on public roads.
How Cat-Back Layout Affects Ground Clearance and Departure Angle
The routing and exit point of a cat-back determine how the system clears obstacles and affects departure angle on a Wrangler with lifted suspension or aftermarket bumpers. Systems that tuck the piping close to the frame and exit behind the bumper typically preserve clearance better than those with low-hanging mufflers or sideways exits.
When planning an upgrade, map the exhaust path relative to common impact points such as skid plates, rear differential, and bumper corners. Some designs offer an upward-angled or side-exit tailpipe to avoid direct contact with rocks and trail obstacles, which can be preferable for heavily used off-road Wranglers.
- Tucked routing improves protection but can concentrate heat near chassis components.
- Side exits reduce rear-centre clearance but can direct exhaust away from hitch-mounted accessories.
- Check for heat shielding when piping runs near fuel or brake lines.
Choosing Between Single and Dual Exit Pipes
Single-exit systems keep plumbing simpler and are often lighter, while dual-exit systems can offer a more balanced visual symmetry and slightly different exhaust pulses. For many Wrangler owners, single-exit designs are a pragmatic choice that keeps weight down and retains clearance.
Dual exits that split near the rear bumper can require more precise fitment to avoid interference with spare tires or aftermarket carriers. Consider the aesthetic and acoustic impact, but weigh those against any added installation complexity or clearance tradeoffs.
- Dual exits may produce a fuller exhaust note under load.
- Single exits simplify fabrication and may be easier to service on the trail.
Muffler Types and How They Shape Tone
Mufflers vary from straight-through glass-packed styles to complex chambered units. Straight-through designs prioritize flow and a raw sound while chambered mufflers focus on quieter operation and reduced drone. The internal design determines which frequencies are amplified or suppressed.
On a Jeep Wrangler, where low-end response and a socially acceptable cruising volume matter, look for mufflers that balance open sound with targeted attenuation to avoid excessive cabin resonance. Removable packing or modular baffle systems offer tunability in some aftermarket designs.
- Glass-packed or perforated core mufflers increase volume and sharpness.
- Chambered mufflers smooth tone and reduce in-cabin drone.
- Resonator additions can fine-tune the sound profile without major changes.
Installation Tips for DIY Owners
Plan for basic tools, a safe lift or ramps, and new gaskets or clamps. Even kits advertised as bolt-on can benefit from fresh seals and anti-seize on fasteners. Start by supporting the factory exhaust before removing hangers to prevent sudden drops that can damage parts.
Mock-fit components and verify hanger alignment before final tightening. Apply anti-seize to threaded connections, torque bolts to spec, and check clearances at full articulation if you run larger tires or aftermarket suspension. After a few heat cycles, recheck hardware for tightness.
- Use penetrating oil on rusted bolts and allow time to soak.
- Mark original hanger positions to help with reassembly.
- Perform a leak check at joins before final road testing.
Heat Management and Nearby Components
Exhaust routing concentrates heat that can affect nearby plastic trim, fuel lines, or electronic sensors. Systems that place piping close to the body or skid plates should include heat shields or recommend thermal wraps. Consider whether additional shielding is needed for accessories such as hitch mounts or aftermarket step rails.
If you frequently run the Jeep at low speeds in hot conditions or carry heavy loads, monitor temperatures after installation and add heat protection where necessary. Preventing heat soak into fuel components helps maintain reliability on long trail runs.
- Heat shields and wraps reduce radiant heat transfer.
- Keep at least a small gap between piping and plastic components.
- Verify sensor harness routing is not exposed to direct heat.
Noise Regulations and Trail Etiquette
Noise limits can vary between jurisdictions and trail systems. Even if a louder exhaust enhances the driving experience, be mindful of local rules and the impact on other trail users and campsites. A system that allows a quieter mode for highway travel and a louder character for off-road use can be a practical compromise.
If you plan to use the Jeep on both public roads and remote trails, choose an option that meets legal limits during street use while still delivering the desired presence on the trail. Respectful volume levels preserve access to sensitive areas and reduce conflicts with other users.
- Some systems include removable packing or quiet inserts.
- Check local park or trail regulations before running louder configurations.
- Consider the effect of exhaust placement on hikers and campsites.
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Select your Jeep Wrangler configuration to see the most relevant Cat-back Exhaust Systems recommendations
How We Chose the Best 2018-Present Jeep Wrangler Cat-back Exhaust System
We focused on criteria that matter specifically for 2018-present Jeep Wrangler owners, prioritizing fit and on-vehicle performance above marketing claims. First, fitment and compatibility were required: shortlisted systems had to mount to factory hangers and clear common suspension and steering components for JL and JLU-generation Wranglers. Second, materials and corrosion resistance were evaluated, with preference given to stainless steel or coated tubing suited to off-road and salty environments. Third, sound profile and tone were considered to match typical Wrangler use—clear, deep resonance without drone at cruising speeds. Fourth, construction quality and weld integrity were assessed through manufacturer-provided material specs and visible fabrication details. Fifth, installation complexity and the availability of bolt-on hardware were weighed to reflect owner DIY potential. We excluded full header replacements, systems that required cutting major factory components, and any products that lacked clear fitment information for 2018-plus Wranglers. The final list balances real-world durability, expected sound characteristics, and practical fitment for owners who want a reliable, long-lasting cat-back exhaust.
Our full evaluation process is outlined in our review methodology.
FAQ
Will a cat-back exhaust require a tune on the 2018-present Wrangler?
It often depends on the specific engine and how aggressive the system is. Many cat-back swaps that only change the piping and muffler do not require a tune, but higher-flow systems or those paired with other intake or header changes may benefit from tuning to optimize air-fuel ratios and performance.
How long does installation typically take for a DIYer?
Most bolt-on cat-back installations can be completed in a few hours with basic hand tools and a safe way to lift the vehicle. Complexity increases if hangers need modification or if rusted fasteners must be cut out. Allow extra time for alignment and leak checking.
Can I keep my factory catalytic converter with a cat-back swap?
Yes. Cat-back systems replace the piping after the catalytic converter and typically retain the factory cat and emissions sensors. This preserves emissions equipment while changing the muffler and downstream flow characteristics.
Will changing to a larger diameter pipe hurt low-end torque?
Excessively large piping can reduce exhaust gas velocity and hurt low-end torque, which is important for trail crawling and daily driving. Choosing a balanced diameter that improves midrange flow without sacrificing low-RPM scavenging is key for Wrangler use.
How can I minimize drone after installing a new cat-back?
Select a muffler with internal baffling designed to target common highway frequencies, add a resonator if available, and ensure proper alignment of hangers to reduce vibration. Cabin drone often becomes noticeable after installation but can be mitigated with tuned mufflers or inserts.
Are stainless steel systems worth the extra cost for a Wrangler?
Stainless systems generally offer better corrosion resistance and longer lifespan, which is valuable for a vehicle exposed to off-road elements and salt. The higher upfront cost can be offset by fewer replacements and less maintenance over the vehicle's life.
Final Verdict
When choosing a cat-back for your 2018-present Jeep Wrangler, prioritize fitment to JL and JLU era mounting points, corrosion-resistant materials, and a muffler design that matches your sound preferences without introducing excessive drone. Balance pipe diameter and routing to protect ground clearance and preserve low-end torque for trail use. Consider installation complexity and whether you want a system that allows reversible changes. Focus on the tradeoffs between durability, tone, and ease of installation to pick the option that best matches how you use your Wrangler. With the right cat-back, you can gain a more engaging exhaust note and modest performance gains while keeping the vehicle practical for daily driving and off-road adventures.
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