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Choosing the right Jeep Grand Cherokee cat-back exhaust system changes more than just how your vehicle sounds. The correct system affects throttle response, exhaust flow, cabin noise, and long-term durability, so picking carefully matters for daily driving and spirited use. This guide highlights six shortlisted options that represent the top choices in the category and explains the practical tradeoffs between sound, materials, and fit. Below you will find a concise breakdown of what we evaluated and why those criteria matter for your Jeep Grand Cherokee.
Looking for other parts? See all Jeep Grand Cherokee parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | Borla 140406 Cat-Back Exhaust System for 2011-2021 Jeep Grand Cherokee (Under-Bumper Tip Exit) |  |
| Best quality Built to a higher standard if you want something more solid | Flowmaster Outlaw Series Cat-Back Exhaust System |  |
| Best Value The sweet spot between price and what you get | Northeastern Exhaust Stainless Steel Cat-Back Exhaust System Kit for Jeep Grand Cherokee (1999–2004) |  |
| Best budget The cheapest option that still gets the job done reliably | MBRP S5236AL 3" Aluminized Steel Single Side Exit Cat-Back Exhaust System |  |
| Highest Rated A top-rated pick with lots of positive feedback | MBRP S5200AL 3" Cat-Back Exhaust System (Aluminized Steel) |  |
1. Borla 140406 Cat-Back Exhaust System for 2011-2021 Jeep Grand Cherokee (Under-Bumper Tip Exit)
| Brand Name | Borla |
|---|---|
| Manufacturer Part Number | 140406 |
| Included Components | Catback |
| Item Type Name | Catback |
This Borla cat-back replaces the factory rear section on 2011–2021 Jeep Grand Cherokee submodels and is designed to increase exhaust flow and produce a fuller, sportier tone. It uses T-304 stainless steel with mandrel-bent tubing and straight-through multi-core muffler technology to reduce backpressure and deliver a stronger exhaust note without extreme rasp. Typical use is a direct bolt-on swap behind the catalytic converter; many owners report a straightforward install and a noticeable sound and throttle response change under load. Practical benefits include corrosion-resistant construction, precision fit from CNC manufacturing, and the characteristic Borla sound that balances daily drivability with performance character. Limitations to expect are occasional fitment variance that can require adjustment or new hardware and a tendency toward mild drone at steady highway speeds in some setups. Some users also report clamp or flange leaks if not tightened or aligned precisely during installation.
Best for: Drivers seeking a balanced, factory-quality performance upgrade for a Grand Cherokee who value improved sound and drivability without extreme modification.
Less Ideal for: Those wanting a completely quiet, stock-like exhaust or buyers unwilling to address minor fitment tweaks during installation should consider other options.
- T-304 stainless steel construction for long-term corrosion resistance
- Mandrel-bent piping and CNC fabrication for close fit and improved flow
- Straight-through, multi-core muffler design delivers a deep, performance-oriented tone
- Bolt-on design intended for direct replacement behind the catalytic converter
- Some reported fitment inconsistencies requiring adjustment or replacement hardware
- Can produce noticeable drone at certain highway cruise speeds
Verdict: A durable, bolt-on stainless-steel cat-back that gives Jeep Grand Cherokees a fuller, performance-oriented sound while improving exhaust flow.
2. Flowmaster Outlaw Series Cat-Back Exhaust System
| Manufacturer | Flowmaster |
|---|---|
| Model | 817688 |
| Finish Type | Powder Coated |
| Exterior | Painted |
The Flowmaster Outlaw Series cat-back exhaust replaces the factory rear section to deliver a much deeper, aggressive exhaust note and improved flow for a Jeep Grand Cherokee. It is typically used as a complete rear exhaust replacement and bolts into the factory mid-pipe location to change sound and reduce backpressure. Notable features include stainless steel construction with powder-coated finish and black ceramic tips that resist corrosion while keeping a show-ready appearance. Real-world benefits include a pronounced V8-style rumble at idle and under acceleration, improved exhaust scavenging that can help responsiveness, and a durable build intended for long-term use. Installation can be straightforward with the proper tools and a lift, but reviewers note alignment and clamp quality issues that sometimes require welding or stronger fasteners; expect some fitment tweaking for a perfect tip alignment. There is also noticeable highway drone for some drivers, so sound preference and driving patterns should guide the decision.
Best for: Performance-oriented buyers who prioritize sound and throttle response for their Jeep Grand Cherokee and are willing to accept hands-on installation or shop labor to get the desired result.
Less Ideal for: Drivers who prioritize a quiet, factory-like cabin or want a strictly bolt-on, perfectly aligned install with no additional adjustments should consider a milder or more OEM-focused exhaust option.
- Produces a deep, aggressive V8-style exhaust note that enhances engine character
- Stainless steel construction and powder-coated finish improve durability and corrosion resistance
- Black ceramic tips provide a finished, aggressive appearance
- Designed as a full cat-back rear section to improve exhaust flow and throttle response
- May require fitment adjustments or welding for perfect tip alignment and secure clamp attachment
- Can produce highway drone for some drivers
Verdict: A durable, aggressive-sounding cat-back that delivers strong performance character for a Jeep Grand Cherokee but may need fitment tweaks and can drone on the highway.
3. Northeastern Exhaust Stainless Steel Cat-Back Exhaust System Kit for Jeep Grand Cherokee (1999–2004)
| Compatible Vehicle | Jeep Grand Cherokee 1999–2004 |
|---|---|
| Material Type | 409 Grade Stainless Steel |
| Installation Type | Clamp-On |
| Included Components | Clamp |
This Northeastern Exhaust cat-back kit replaces the rear exhaust on 1999–2004 Jeep Grand Cherokee vehicles to improve exhaust flow, throttle response, and sound. It is built from 409-grade stainless steel and arrives with clamp-on installation hardware so a competent DIYer or shop can fit it without a full-weld install. In real-world use the system gives a deeper, throaty tone and several owners report improved low-end response and modest fuel economy gains after addressing rusted or damaged stock components. Some buyers needed to modify the tailpipe or use a larger clamp or reducer to match factory pipe diameters, and a few installers welded joints for a firmer connection instead of only clamping. Fitment and noise are appropriate for street use on the specified Grand Cherokee years, but those expecting an out-of-the-box performance upgrade for high-displacement V8s may find the 2-1/4 inch piping restrictive without additional adaptation. The kit offers solid materials and sound improvement for the money when you accept potential minor adjustments during installation.
Best for: Practical optimizers who want a cost-conscious, factory-replacement style cat-back that improves sound and drivability on a 1999–2004 Grand Cherokee without chasing high-end branding.
Less Ideal for: Drivers seeking a bolt-on high-flow performance system for larger V8 tuning or race use should look at purpose-built performance exhausts instead.
- 409-grade stainless steel resists corrosion better than aluminized options
- Clamp-on design allows installation without full welding for many repairs
- Designed to deepen exhaust note and improve throttle response
- Includes clamp so fewer additional parts are needed for basic fitment
- Pipe diameter is 2-1/4 inch which can be restrictive on some V8 applications and may require adapters
- Some parts may need trimming, expanding, or welding for a solid, leak-free fit
Verdict: A durable, budget-minded stainless cat-back that delivers better sound and drivability for 1999–2004 Jeep Grand Cherokees while keeping installation straightforward for practical DIYers.
4. MBRP S5236AL 3" Aluminized Steel Single Side Exit Cat-Back Exhaust System
| Material | Aluminized steel |
|---|---|
| Pipe diameter | 3" |
| Exit style | Single side exit |
| Model | S5236AL |
This MBRP cat-back is a value-oriented exhaust system built from heavy 16-gauge aluminized steel to deliver a deeper, fuller sound and modest performance gains. It replaces the factory back half of the exhaust and is typically installed with common hand tools or by a professional when fitment is tight on a Jeep Grand Cherokee. Notable features include a single side 3-inch piping layout and protective aluminized seams intended to slow rust compared with bare steel. In practice the system provides a richer exhaust tone at throttle while remaining relatively muted at idle, and some users report small improvements in torque, horsepower, and fuel economy. The aluminized steel construction keeps cost down but is not as corrosion-resistant as stainless options long term, so expect eventual surface rust in harsh climates. Fitment requires following the pre-assembly guidance to avoid alignment issues and occasional part damage reported in transit may require inspection before installation. For cost-conscious owners wanting a performance sound upgrade without premium materials, this is a practical choice.
Best for: Budget-conscious Jeep Grand Cherokee owners who want a noticeable sound and modest performance gains without paying for premium stainless systems.
Less Ideal for: Owners seeking the highest long-term corrosion resistance or a fully quiet, OEM-like exhaust should consider higher-end stainless systems or different designs.
- Aluminized 16-gauge steel balances strength and lower cost compared with stainless options.
- 3-inch single-side piping delivers a noticeably fuller exhaust note under throttle.
- Designed to increase torque and horsepower compared with the stock back exhaust.
- Can be installed with common hand tools, reducing installation complexity for experienced DIYers.
- Aluminized steel is less corrosion-resistant than stainless steel and can show surface rust over time.
- Some customers reported damaged pieces on arrival, so parts inspection before install is advised.
Verdict: A cost-effective cat-back for Jeep Grand Cherokee buyers who want a stronger sound and small performance gains now, accepting that aluminized steel won't match stainless for long-term corrosion resistance.
5. MBRP S5200AL 3" Cat-Back Exhaust System (Aluminized Steel)
| Installation Type | Clamp-On |
|---|---|
| Finish Type | Aluminized |
| Manufacturer | MBRP |
| Item model number | S5200AL |
The MBRP S5200AL is a clamp-on 3-inch cat-back exhaust built from heavy aluminized steel to give the Grand Cherokee a stronger exhaust flow and deeper tone without major fabrication. It installs using the vehicle's factory hangers and included clamps so a competent DIYer or shop can typically fit it with common hand tools; instructions call for trimming the midpipe to match cab and bed configurations, which in this context means cutting to fit the Jeep's layout as needed. MBRP highlights thicker sixteen-gauge tubing and seam protection to resist corrosion better than thin competitors, and the tuned design aims to recover torque and horsepower while offering a noticeable but not excessively loud rumble. Practical benefits are improved throttle response and potentially modest fuel economy gains under light loads due to more efficient exhaust scavenging. Limitations to expect are a possible highway drone at certain RPMs for long-distance cruising and the aluminized finish will not match stainless steel for long-term corrosion resistance in harsh climates despite the protective coating.
Best for: Reliability-focused buyers who prioritize a bolt-on, serviceable exhaust upgrade that restores drivability and adds a controlled performance sound without extensive modification.
Less Ideal for: Buyers who want the longest-term corrosion resistance or a completely drone-free, refined touring exhaust should consider stainless or differently tuned systems instead.
- Direct-fit clamp-on design uses factory-style hangers and included clamps for straightforward installation
- 3-inch tubing and tuning aimed at improving torque and throttle response
- Heavy gauge aluminized steel and coated seams for better corrosion resistance than thin competitors
- Aluminized steel is less corrosion-resistant long term than stainless options in salty or coastal environments
- Some users report a midrange/highway drone at specific RPM ranges during extended highway driving
Verdict: A practical, reliability-minded cat-back that delivers improved flow and sound with easier bolt-on installation but sacrifices the ultimate corrosion resistance of stainless steel.
Choosing the Right Jeep Grand Cherokee Cat-back Exhaust System: Key Factors to Consider
Material and Corrosion Resistance
Material choice directly affects how long an exhaust system lasts and how well it resists corrosion from road salt and moisture. Stainless steel alloys offer varying levels of rust resistance; thicker wall tubing and high-grade fittings reduce the chance of premature failure.
Weld quality and flange construction also matter because weak joints fail first. Consider systems with mandrel-bent tubing and TIG or MIG welds that are described as fully welded rather than clamped assemblies. Protective coatings or polished finishes can add lifespan but check for compatibility with heat cycling and real-world wear.
Sound Profile and Tone
The exhaust tone you get affects daily comfort and the driving experience. Some systems aim for a mellow, deep tone under load while minimizing drone at cruising speeds. Others prioritize an aggressive note across the rev range, which can introduce cabin drone on long highway runs.
Evaluate how a given design manages resonance and whether it uses resonators or straight-through mufflers to tune frequency. Sound descriptions, sample clips, or third-party recordings can help, but understand that installation, engine tuning, and cabin insulation will also influence perceived tone.
Exhaust Flow and Backpressure
Improved flow can enhance throttle response and help the engine breathe more freely, especially at higher RPMs. Mandrel-bent piping, larger diameter tubing, and smooth transitions at joints reduce turbulence and backpressure.
That said, oversizing piping can reduce low-end torque on some engines. Look for systems designed to match the Grand Cherokee's engine characteristics, balancing midrange torque with top-end flow. Consider whether the system maintains sufficient backpressure for normal drivability while still improving overall efficiency.
Fitment and Installation
A system that fits without excessive modification saves time and reduces unintended issues. Vehicle-specific hangers, pre-aligned flanges, and provision for factory sensors ensure a cleaner install and reduce vibration-related wear.
Check whether the kit requires cutting or welding, what hardware is included, and whether the supplier documents torque specs or installation steps. Simpler bolt-on systems with clear instructions are preferable for most installers and reduce the chance of leaks or misalignment.
Muffler and Resonator Design
The internal design of mufflers and resonators defines how noise is attenuated and what frequencies are emphasized. Chambered mufflers create a different sound signature than straight-through designs, and internal packing affects how that signature changes as the packing settles over time.
Consider the balance between attenuation at cruising speeds and the desired aggressiveness under load. Also account for maintenance items such as replaceable packing or the likelihood of packing degradation, which can alter sound over the life of the system.
Compatibility with Sensors and Emissions Equipment
Modern vehicles rely on O2 sensors, catalytic converters, and other emissions equipment to run correctly. A system that preserves factory sensor locations and catalytic function avoids check-engine lights and driveability issues.
Verify that the design accommodates sensor bungs, maintains required clearances, and does not require removal of emissions-critical components. This preserves engine management behavior and reduces the risk of diagnostic trouble codes appearing after installation.
How We Chose the Best Jeep Grand Cherokee Cat-back Exhaust System
We started by focusing on systems engineered specifically for the Jeep Grand Cherokee to ensure proper fitment and straightforward installation. Our selection criteria emphasized material construction and corrosion resistance, exhaust flow characteristics and backpressure reduction, sound profile consistency across operating ranges, and real-world mounting and hanger design that affect vibration and longevity. We also considered compatibility with factory sensors and emissions equipment to avoid common installation issues and to preserve driveability. Systems were excluded if they required extensive fabrication, altered critical emissions components, or lacked documented fitment for the Grand Cherokee. The final six choices represent a balance of durable materials, predictable sound tuning, reliable fitment, and design choices that optimize flow without sacrificing everyday drivability.
Our full evaluation process is outlined in our review methodology.
FAQ
Will swapping to a cat-back exhaust system affect my Jeep Grand Cherokee's engine performance?
A cat-back exhaust system can alter throttle response and high-RPM power by improving exhaust flow and reducing backpressure. The effect depends on the system's diameter, muffler design, and how it integrates with the engine's characteristics. You may notice gains at higher revs or crisper response, but results vary by design and engine tune.
How loud will a performance exhaust system be after installation?
Loudness depends on muffler type, presence of resonators, and piping layout. Systems marketed as performance-oriented often sound louder under acceleration but may include features to limit drone during cruising. Listening to sample recordings or checking user reports for the exact system can give a realistic expectation.
Can I install a cat back exhaust system myself?
Many systems are designed for bolt-on installation with hand tools and common garage equipment. However, some kits require lifts, specific torque specifications, or minor trimming. If you are comfortable with underbody work and have the right tools, DIY installation is possible, otherwise professional installation ensures correct alignment and leak-free joints.
Do I need to re-tune my Jeep Grand Cherokee after changing the exhaust?
Re-tuning is not always required for a cat-back swap, but it can optimize performance gains if the new system significantly changes flow characteristics. For mild changes focused on sound and minor flow improvements, the factory tune usually remains compatible. For larger-diameter systems or systems that alter scavenging, a tune can help realize potential benefits.
How do I avoid exhaust drone on long drives?
Choose a system with resonators or muffler designs that target mid-frequency attenuation and avoid straight-through configurations that emphasize constant-frequency notes. Proper hangers and alignment also reduce vibration-induced resonance. If drone appears after installation, adding or adjusting resonators and checking for loose hangers often helps.
Conclusion
When choosing a Jeep Grand Cherokee cat-back exhaust system, prioritize fitment and material quality first, then evaluate sound and flow characteristics according to how you drive. Durable construction and correct hanger design reduce installation problems and long-term wear, while muffler and resonator choices determine cabin comfort and the exhaust note.Weigh the tradeoffs between a louder, more aggressive tone and potential cabin drone or changes in low-end response. Selecting a system that balances real-world drivability with the sound and performance you want will deliver the best ownership experience.
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