TopTenPick

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Chrysler’s 3.6L Pentastar V6 powers a wide range of vehicles – Jeep Wrangler JK, JL and Gladiator, the Dodge Charger and Chrysler 300, and the RAM 1500 – and each platform has its own real cat-back and axle-back options rather than one universal pipe. These are actual, currently-listed systems for the Pentastar V6, grouped by the vehicle they’re built for; match yours before buying, since a Wrangler JL cat-back will not fit a Charger.

Pick 01 of 10

Borla S-Type Cat-Back (Turn Down Exit) – Jeep Wrangler JK

Borla’s mid-tier S-Type system for the 2012-2018 Wrangler JK with the 3.6L Pentastar, part 140634.

• T-304 stainless steel
• Turn-down dual exit
• Fits 2012-2018 Jeep Wrangler JK 3.6L V6

Pros

• Aggressive but livable daily tone
• Borla’s stainless build quality

Cons

• JK-specific – won’t fit the newer JL

Price: $550-$700

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Pick 02 of 10

Borla ATAK Cat-Back – Jeep Gladiator JT

Borla’s most aggressive ATAK tune, built for the Gladiator JT’s 3.6L Pentastar, part 140813.

• T-304 stainless steel
• ATAK’s most aggressive sound tuning
• Fits 2020-2026 Jeep Gladiator JT 3.6L

Pros

• Loudest, most aggressive option in the Borla lineup

Cons

• Gladiator-specific fitment, not for Wrangler

Price: $600-$750

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Pick 03 of 10

MagnaFlow Overland Series Cat-Back – Jeep Wrangler JL

MagnaFlow’s Overland Series for the 2018+ Wrangler JL Unlimited, part 19592, built for off-road ground clearance.

• 2.5in mandrel-bent piping
• No-tip high-clearance rear exit
• No Drone Technology
• Fits 2018+ Jeep Wrangler JL 3.6L

Pros

• High-clearance exit specifically helps departure angle off-road
• MagnaFlow’s drone-cancelling tech for highway driving

Cons

• JL-specific fitment

Price: $450-$600

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Pick 04 of 10

MagnaFlow Overland Series Cat-Back – Jeep Wrangler JK Unlimited

The equivalent Overland Series system for the earlier 2012-2018 Wrangler JK Unlimited, part 19539.

• Mandrel-bent stainless piping
• Straight-through muffler
• Fits 2012-2018 Jeep Wrangler JK Unlimited 3.6L

Pros

• Same Overland Series build as the JL version, sized correctly for the JK

Cons

• Confirm the Unlimited-specific fitment for your exact JK trim

Price: $450-$580

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Pick 05 of 10

MagnaFlow Street Series Cat-Back – RAM 1500 3.6L

MagnaFlow’s Street Series for the 3.6L RAM 1500, part 19461/19498 depending on model year.

• 2.5in mandrel-bent main piping
• Single straight-through muffler
• Polished tip
• Fits 2013-2026 RAM 1500 3.6L (check exact model-year part)

Pros

• Purpose-built for the truck platform, not adapted from a car system

Cons

• RAM 1500-specific; multiple part numbers exist by model year

Price: $400-$550

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Pick 06 of 10

MagnaFlow Street Series Cat-Back – Chrysler 300 / Dodge Charger 3.6L

MagnaFlow’s Street Series for the 300 and Charger SXT with the 3.6L V6, part 19225.

• Mandrel-bent 2.5in stainless tubing
• Deep, classic tone tuned for the sedan platform
• Fits 2015-2023 Chrysler 300 3.6L / Dodge Charger SXT 3.6L

Pros

• Correctly sized for the sedan platform rather than a truck/Jeep system

Cons

• Only covers the 3.6L SXT trims, not the V8 models

Price: $450-$600

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Pick 07 of 10

Flowmaster FlowFX Extreme Cat-Back – Jeep Wrangler JL

Flowmaster’s FlowFX Extreme line for the 2018-2024 Wrangler JL with the 3.6L V6.

• FlowFX Extreme muffler design
• Stainless steel construction
• Fits 2018-2024 Jeep Wrangler JL 3.6L

Pros

• Flowmaster’s signature deeper rumble vs the more refined Borla/MagnaFlow tones

Cons

• JL-specific fitment

Price: $400-$550

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Pick 08 of 10

aFe Power Rebel Series Cat-Back – Jeep Wrangler JL

aFe’s Rebel Series cat-back, part 49-48066-B, for the JL, tuned to be noticeable under throttle without highway drone.

• 409 stainless steel
• Mandrel-bent piping
• Free-flow mufflers
• Fits Jeep Wrangler JL 3.6L

Pros

• Owners specifically note it avoids highway drone, a common complaint with V6 Jeep exhausts

Cons

• JL-specific fitment

Price: $500-$650

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Pick 09 of 10

aFe Power Rebel Series Axle-Back – Jeep Wrangler JL

The axle-back version of the same Rebel Series, part 49-48067, a simpler bolt-on than the full cat-back.

• 409 stainless steel axle-back section
• Simpler install than a full cat-back
• Fits Jeep Wrangler JL 3.6L

Pros

• Less expensive and easier install than the full cat-back

Cons

• Smaller tone/flow change than the full Rebel Series cat-back

Price: $350-$450

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Pick 10 of 10

CORSA Sport Axle-Back – Jeep Wrangler JL

CORSA’s Sport line, marketed specifically as a drone-free axle-back for the 2018-2026 Wrangler JL 3.6L.

• CORSA’s RSC (reflective sound cancellation) technology
• Stainless steel construction
• Fits 2018-2026 Jeep Wrangler JL 3.6L

Pros

• Drone cancellation is CORSA’s specific engineering focus, addressing the most common Pentastar exhaust complaint

Cons

• JL-specific fitment

Price: $450-$600

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Buying tips

• The 3.6L Pentastar spans very different platforms – confirm the exact part number for your vehicle (Wrangler JK vs JL vs Gladiator vs Charger/300 vs RAM 1500) before ordering; these systems are not interchangeable across platforms.
• Highway drone is the single most common complaint with aftermarket Pentastar exhausts – MagnaFlow’s No Drone Technology and CORSA’s RSC are both specifically engineered around that problem if it matters to you.
• Axle-back systems are cheaper and easier installs than a full cat-back, but change the sound less dramatically.
• A cat-back or axle-back doesn’t touch the catalytic converter, so none of these should trigger a check-engine light on their own – if one does, check for a loose O2 sensor connection during install.

As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.