The Jeep Gladiator's 3.6L Pentastar is a capable engine that sounds exactly like nothing from the factory. It's not a quiet, refined silence — it's the forgettable drone of a truck that doesn't know what it wants to be. A cat-back exhaust fixes that, but on the Gladiator the stakes are higher than on a typical truck: clearance matters on the trail, tip placement affects ground approach angles, and you don't want something that drones for four hours on a highway stretch to the trailhead. The right exhaust here balances sound character, ground clearance, and build quality that can take a rock strike. Here's what's worth running on a 2020–2024 JT.
Quick links
- 1. aFe ROCK Basher 3in Cat-Back — Best Value Trail Build
- 2. aFe Apollo GT Hi-Tuck — Best Ground Clearance
- 3. MagnaFlow Rock Crawler Series — Best Single-Exit Trail Tone
- 4. AWE Trail Edition Cat-Back — Best Mid-Range All-Rounder
- 5. Corsa 4in Black Tip Single Exit — Best Aggressive Street Sound
- 6. MagnaFlow Overland Series — Best for Daily/Overland Balance
- 7. AWE Tread Edition Dual Exit — Best Premium Look and Sound
- How to Choose a Cat-Back for the Gladiator
- FAQ
1. aFe ROCK Basher 3in Cat-Back — Best Value Trail Build
aFe ROCK Basher Cat-Back 3in SS-409 — $516
The ROCK Basher is the most trail-honest exhaust on this list. The 3-inch 409 stainless tubing is sized for real flow improvement over the stock system, and the routing is designed with rock crawlers in mind — not weekend warriors who never leave pavement. At this price, it's the easiest entry point to meaningful sound and flow on the JT without overthinking it. If the Gladiator is a tool first and a show truck second, start here.
2. aFe Apollo GT Series 2.5in Hi-Tuck — Best Ground Clearance
aFe Apollo GT Series Hi-Tuck Cat-Back — $579
The Apollo GT's Hi-Tuck routing is the defining feature: the system is designed to sit as high and tight to the chassis as possible, protecting the exhaust from trail debris and improving approach angles in a meaningful way. For a lifted Gladiator running aggressive terrain, the routing design matters as much as the muffler. The 409 stainless construction is durable, and the price is honest for what you get. This is the pick for anyone who actually flexes the chassis on real obstacles.
3. MagnaFlow Rock Crawler Series 2.5in Single Rear Exit — Best Single-Exit Trail Tone
MagnaFlow Rock Crawler Series Cat-Back — $777
MagnaFlow built this specifically for the Gladiator's trail use case: single rear exit, no decorative tip to catch on a rock ledge, and stainless construction rated for abuse. The tipless exit isn't an oversight — it's the correct choice for a vehicle that sees legitimate offroad use. MagnaFlow's straight-through muffler design delivers a clean, deep tone without interior drone, which matters on long overland drives. For owners who want a trusted name and a purpose-built design, this is the most straightforward pick in the lineup.
4. AWE Tuning Trail Edition Cat-Back — Best Mid-Range All-Rounder
AWE Tuning Trail Edition Cat-Back — $907
AWE's Trail Edition is their dedicated offroad-tuned exhaust for the JT, and they put real development work into the Gladiator platform specifically — not a rebadged Wrangler system. The sound character is aggressive enough to satisfy but tuned to avoid the cabin resonance that makes some exhausts unbearable on long drives. AWE's build quality is consistent and their fitment on the Pentastar is dialed in. This is the pick for the Gladiator owner who splits time between trails and highway miles equally.
5. Corsa 4in Black Tip Single Exit — Best Aggressive Street Sound
Corsa Single Side Exit Cat-Back w/ 4in Black Tip — $1150
Corsa's Reflective Sound Cancellation technology is what separates them from most bolt-on exhausts — it actively cancels drone frequencies so the Pentastar sounds good at cruise without killing you on a two-hour interstate run. The 4-inch black tip is a bold visual statement, and the build quality is premium throughout. This is the right call for a street-primary Gladiator that sees occasional trail use but mainly needs to sound authoritative in daily driving. Corsa consistently over-delivers on sound engineering relative to price.
6. MagnaFlow Overland Series Cat-Back — Best for Daily/Overland Balance
MagnaFlow Overland Series Cat-Back — $1077
The Overland Series sits above the Rock Crawler in MagnaFlow's Gladiator lineup, tuned for a more refined sound profile that suits a truck loaded with camping gear and covering interstate miles between trailheads. It still delivers the MagnaFlow straight-through muffler tone, but with routing and sound character dialed for comfort over maximum aggression. For a 2020–2023 Gladiator that's genuinely used for overlanding — not just badge collecting — this is the exhaust that makes the most sense long-term.
7. AWE Tread Edition Dual Exit — Best Premium Look and Sound
AWE Tread Edition Dual Exit Cat-Back — Diamond Black Tip — $1555
The dual-exit Tread Edition is AWE's flagship Gladiator offering, and it shows. The diamond black tips are aggressive, the sound tuning is polished for the Pentastar's characteristics, and the dual-exit configuration gives the Gladiator a visual presence that the stock system categorically doesn't. This is the pick for a Gladiator that's been dialed in aesthetically — lifted, wheeled, and detailed — where the exhaust needs to match the rest of the build. It's the most expensive option here, and it earns it.
How to Choose a Cat-Back Exhaust for the Jeep Gladiator
Trail use vs. street use changes everything. If the Gladiator sees legitimate rock crawling or trail driving, tip placement, exit routing, and ground clearance matter more than sound character. The aFe Apollo GT Hi-Tuck and MagnaFlow Rock Crawler exist specifically for this scenario. If the truck is mostly a daily driver or occasional overlander, prioritize sound quality and drone management — Corsa's RSC technology and AWE's tuning approach are built for that use case.
Pipe diameter: 2.5in vs. 3in. On the naturally aspirated 3.6L Pentastar, the power gains from cat-back alone are modest regardless of pipe size. The difference matters more for sound — 3-inch systems tend to be louder and more aggressive. If you're noise-sensitive in the cab or frequently have passengers, 2.5-inch systems typically produce a more livable tone at cruise.
Tip style and trail clearance. Side-exit systems with large decorative tips can create unexpected snag or scrape points on tight trails. The no-tip Rock Crawler design from MagnaFlow and the tucked routing of the aFe Apollo GT are purpose-built to avoid this. For a truck that will never see a trail, tip aesthetics are fair game — the AWE Tread Dual and Corsa 4-inch black tip are excellent choices.
409 vs. 304 stainless steel. 409 SS is the industry standard for cat-back exhausts — durable, corrosion-resistant, and cost-effective. 304 SS (used in systems like the aFe Vulcan) is higher grade, more corrosion resistant in extreme conditions, and generally found in premium-priced systems. For most Gladiator owners, 409 is more than sufficient. If you're in a salt-belt state or submerging the exhaust regularly in water crossings, 304 is worth considering.
Also consider pairing your exhaust with a cold air intake for a more complete breathing upgrade — see our guide to the best cold air intakes for the Jeep Wrangler JL, which shares the same 3.6L Pentastar platform. And if you're building across multiple platforms, our Bronco cat-back exhaust guide and Wrangler JL exhaust guide cover the direct competitors in the same off-road truck segment.
Once the exhaust is sorted, wheels are the next visual upgrade with real functional upside — browse the full wheel catalog or start with Work Wheels if you want something that sets the Gladiator apart from every other JT on the trail.
FAQ
Do cat-back exhausts fit all 2020–2024 Jeep Gladiator trims?
All products listed here are designed for the 2020–2021 Jeep Gladiator JT with the 3.6L Pentastar V6. The MagnaFlow Overland Series specifically lists fitment through 2023. Always verify your model year and engine against the product fitment notes before ordering. The 3.0L EcoDiesel Gladiator uses a completely different exhaust system and none of these systems apply to it.
Will a cat-back exhaust increase horsepower on the Gladiator?
Modest gains — typically 5–15 hp on a naturally aspirated 3.6L — are realistic from a cat-back alone. The primary benefit is sound and a freer-flowing exhaust path. If power is the goal, pair the exhaust with a cold air intake for a more meaningful combined gain. Don't expect the numbers you'd see on a forced-induction platform.
Is professional installation required, or is this a DIY install?
All of these systems are bolt-on replacements that use factory mounting locations. Most experienced DIYers can complete the install in 1–2 hours with basic hand tools. Penetrating oil on the factory hardware and a second set of hands for aligning hangers will make the job significantly easier. No tuning or ECU changes are required.
Will a cat-back exhaust cause issues with the Gladiator's warranty?
Under the Magnuson-Moss Warranty Act, a dealer cannot void your warranty simply for installing an aftermarket exhaust. They would need to prove the exhaust caused a specific failure. That said, emissions-related warranty coverage may be affected depending on your state. Consult your dealer if this is a concern specific to your situation.
Try wheels on your Jeep Gladiator: see the Jeep Gladiator bolt pattern, wheel sizes by year and wheel builds in our free wheel visualizer.