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Upgrading the cat-back exhaust on a 2019-2026 GMC Sierra 1500 can change how the truck sounds, breathes, and performs under load. Whether you want a deeper idle, stronger midrange response, or a more durable system for long-term use, picking the right cat-back exhaust system matters because fitment, materials, and the muffler design all affect noise level, power delivery, and corrosion resistance.This guide covers our six shortlisted cat-back exhausts that suit the 2019-2026 Sierra 1500 chassis. We evaluated systems for fit, material quality, installation complexity, and how they shape exhaust tone and flow. Read on to find the style and performance balance that matches your driving priorities.
Looking for other parts? See all GMC Sierra 1500 parts & accessories.
Top Picks at a Glance
| Best Overall The best all-around choice for most situations | Flowmaster FlowFX Cat-Back Exhaust System for 2019-2025 Silverado/Sierra 1500 5.3L |  |
| Best Quality Built to a higher standard if you want something more solid | Borla Cat-Back Performance Exhaust System with Dual Carbon Fiber Tips |  |
| Best Value The sweet spot between price and what you get | SPEEDFX MaxFlow Xtreme Cat-Back Exhaust System |  |
| Best Budget The cheapest option that still gets the job done reliably | Rough Country Dual Cat-Back Exhaust System for 2019–2024 Silverado/Sierra 5.3L |  |
| Highest Rated A top-rated pick with lots of positive feedback | Borla 140770BC Cat-Back Exhaust System with Dual Rear Exit and Black Chrome Tips |  |
| Most Popular A crowd favorite that many people choose with confidence | Borla 140769 S-Type Cat-Back Exhaust System (T-304 Stainless) |  |
1. Flowmaster FlowFX Cat-Back Exhaust System for 2019-2025 Silverado/Sierra 1500 5.3L
| Fitment | 2019-2025 Silverado/Sierra 1500 5.3L |
|---|---|
| Tip | 4.5-inch black ceramic-coated |
| Construction | Stainless steel |
| Muffler type | Flow FX straight-through |
The Flowmaster FlowFX cat-back is designed as a direct-fit replacement for 2019-2025 Silverado/Sierra 1500 5.3L trucks that keeps factory hanger locations for a bolt-in installation. It pairs a straight-through Flow FX muffler with full stainless steel construction and a large 4.5-inch black ceramic-coated tip to produce a deep but controlled note both inside and outside the cab. Flowmaster claims up to +10 hp and +12 lb-ft on the dyno, which reflects modest performance gains typical of a free-flowing cat-back rather than a major power upgrade. The system is intended for owners who want a fuller sound without excessive cabin drone and a durable stainless build that resists corrosion. Installation is straightforward for a DIYer with basic tools, though shipping damage to tubing ends has been reported so check incoming parts before fitting. If you prioritize a balanced sound and factory-style fitment, this system matches that goal while offering a recognizable Flowmaster tone.
Best for: Buyers who want a balanced upgrade that improves exhaust tone and flow while maintaining comfortable in-cabin noise and straightforward installation for a hands-on owner.
Less Ideal for: Drivers seeking maximum horsepower gains or the loudest possible exhaust note should consider more aggressive performance systems instead.
- Vehicle-specific fit uses factory hanger locations for easier bolt-on installation
- Full stainless steel construction for improved corrosion resistance
- Straight-through Flow FX muffler delivers a deep but controlled exhaust tone
- Large 4.5-inch ceramic-coated tip gives a finished appearance and resists discoloration
- Modest power gains are typical rather than large horsepower increases
- Some customers report shipping damage to pipe ends on arrival
Verdict: A balanced, factory-friendly cat-back that delivers a deeper Flowmaster tone and durable stainless build without excessive drone or complicated installation.
2. Borla Cat-Back Performance Exhaust System with Dual Carbon Fiber Tips
| Material | T-304 Stainless Steel |
|---|---|
| Fitment | 2019-2024 Silverado/Sierra 1500 5.3L V8 |
| Installation | Bolt On |
| Tips | Dual 3.5" Carbon Fiber Tips |
This Borla cat-back replaces the factory rear section with a T-304 stainless steel, all-welded system designed to deliver the brand's signature aggressive tone and improved exhaust flow. It installs as a bolt-on kit and keeps a factory-like fit while adding dual split rear exit outlets with 3.5-inch carbon fiber tips for a finished look. In everyday driving you get clearer acoustic feedback and a deeper midrange note that helps with throttle response perception; highway driving can introduce some low-frequency drone for certain RPMs depending on cabin insulation. Build quality is high with welded construction and corrosion-resistant stainless, and the kit is made in the USA. If you want a strong performance sound and clean visual upgrade while preserving simple installation, this system does the job, but buyers sensitive to cabin drone or seeking a very quiet or mild upgrade may prefer a different Borla tone level or a more muffled option.
Best for: Drivers who prioritize a strong, performance-focused exhaust tone and durable factory-quality construction and want a bolt-on upgrade that enhances sound and appearance.
Less Ideal for: Drivers seeking a very quiet or subtle exhaust change or those who prioritize a completely drone-free highway cabin experience.
- T-304 stainless steel and all-welded construction for long-term durability
- Bolt-on installation keeps factory-style fitment for the vehicle
- Distinct Borla-tuned aggressive exhaust note that improves throttle feedback
- Dual split rear exit with carbon fiber tips provides a finished, sporty look
- Can produce noticeable low-frequency drone at certain highway RPMs
Verdict: Choose this Borla cat-back if you want a durable, bolt-on system that delivers a bold, performance-oriented exhaust note and a sporty rear appearance.
3. SPEEDFX MaxFlow Xtreme Cat-Back Exhaust System
| Material Type | Stainless Steel |
|---|---|
| Compatible with Vehicle Type | Car |
| Included Components | Exhaust System Kit |
| Brand Name | SPEEDFX |
The SPEEDFX MaxFlow Xtreme cat-back replaces the factory rear exhaust plumbing with mandrel-bent T-304 stainless steel piping and a dual-exit MaxFlow muffler to increase flow and produce a deeper, aggressive tone. It is CNC-manufactured for close fitment to factory attachment points, which helps speed installation and reduce modification for a direct bolt-on swap on 2019-2026 Sierra 1500 models. The premium stainless construction resists corrosion and the dual-wall, double-wall tip options give a beefy finished look. In use the system delivers a noticeably fuller sound under acceleration while keeping drone reasonable on cruises for most drivers. Fitment needs attention since some listings reference different headpipe inlets; confirm the correct variant for your engine before installing and expect occasional minor adjustments for perfect alignment. This kit focuses on sound and durability rather than peak power gains, so buyers should not expect large horsepower jumps without complementary tuning.
Best for: Drivers who want a durable, factory-quality cat-back that sharpens exhaust sound and installs with minimal fabrication for everyday use on their Sierra 1500.
Less Ideal for: Buyers seeking maximum horsepower gains or a strictly quiet stock-like exhaust should consider performance-specific systems or mufflers tuned for low noise instead.
- T-304 austenitic stainless steel construction resists pitting and rust
- Mandrel-bent piping and CNC manufacturing promote smoother flow and closer fitment
- MaxFlow Xtreme muffler produces a rich, aggressive exhaust tone
- Dual exit and double-wall tip options improve visual presence and outlet versatility
- Certain kits may ship with a different headpipe inlet, requiring verification or adapter work
Verdict: A corrosion-resistant, CNC-made cat-back that delivers a richer, more aggressive sound and mostly bolt-on fitment for practical Sierra 1500 upgrades.
4. Rough Country Dual Cat-Back Exhaust System for 2019–2024 Silverado/Sierra 5.3L
| Compatible with Vehicle Type | 2019-2024 4WD Chevy Silverado |
|---|---|
| Automotive Fit Type | Vehicle Specific Fit |
| Material Type | Stainless Steel |
| Manufacturer Part Number | 96011 |
This Rough Country dual cat-back replaces the factory rear-exit system on 2019–2024 5.3L Silverado/Sierra crew and double cab trucks to give a deeper, more aggressive V8 sound and a visual upgrade with quad black stainless tips. The kit uses stainless components, installs onto the truck's factory hangers and includes 304 stainless clamps so most mechanically inclined owners can fit it at home without welding. Rough Country says the system is vehicle-specific tuned to improve flow and should add a noticeable exhaust note with little in-cabin drone at cruising speeds. It is intended only for trucks with factory rear dual exits and will not work on side-exit or active exhaust models. Build quality is mostly solid with 409 and 304 stainless parts, but a few reviewers reported issues with tip fitment and finish over time, so expect to check clamps and possibly swap hardware. For buyers on a budget this system balances sound, looks, and relatively straightforward installation, but it is not a premium race-grade unit and may need minor adjustments during fitment.
Best for: Buyers looking for an affordable way to add a deeper V8 sound and a visual quad-tip upgrade without a complex install, prioritizing value over factory-perfect fitment.
Less Ideal for: Drivers who want a premium, race-oriented exhaust or need compatibility with side-exit or active exhaust systems should look elsewhere.
- Vehicle-specific design tuned for 2019–2024 5.3L trucks for direct fit to factory hangers
- Mostly stainless construction (304 tips and 409 tubing) for improved corrosion resistance
- No-weld installation with supplied clamps simplifies DIY fitment
- Quad black dual-wall 304 tips provide an aggressive look and can accept OEM tips
- Tip fitment and clamp strength have caused fit and retention issues for some users
- Not compatible with side-exit or factory active exhaust-equipped trucks
Verdict: A budget-friendly, vehicle-specific dual cat-back that delivers a deeper V8 tone and quad-tip styling with straightforward no-weld installation.
5. Borla 140770BC Cat-Back Exhaust System with Dual Rear Exit and Black Chrome Tips
| Material Type | Stainless Steel |
|---|---|
| Included Components | Catback |
| Item Type Name | Catback |
This Borla cat-back replaces the factory rear section to give a fuller, tuned V8 note while keeping cabin drone minimal. It bolts on to the factory hangers and comes fully welded from T-304 stainless steel, so installation is straightforward for a shop or experienced DIYer and it resists corrosion over time. Borla’s acoustic tuning provides strong throttle response feedback without excessive loudness while cruising, and the dual split rear exit with black chrome tips gives a finished look. The system is made in the USA and advertised with a no-drone guarantee, which many owners corroborate in real-world driving. Expect improved exhaust flow and a sportier sound but not a large power overhaul by itself; any horsepower gains will be modest unless paired with further engine modifications. Buyers should also plan for professional alignment of hangers and heat management during installation on trucks with tight clearances.
Best for: Buyers who prioritize a durable, factory-quality replacement exhaust that restores a strong V8 sound while minimizing cabin drone and long-term maintenance concerns.
Less Ideal for: Buyers seeking maximum power gains or an extremely aggressive, track-focused exhaust tone should consider more race-oriented systems or additional engine upgrades.
- T-304 stainless steel construction resists corrosion for long-term durability
- Bolt-on design and all-welded construction simplify professional or DIY installation
- Acoustic tuning delivers a clear V8 sound with minimal cabin drone
- Dual rear exit with finished black chrome tips improves rear appearance
- Modest performance gains alone; significant horsepower increases require additional engine mods
- May need professional fitment to ensure hanger alignment and adequate clearance
Verdict: A reliable, factory-quality cat-back that gives a refined V8 sound and long-term corrosion resistance for daily-driven Sierra 1500 trucks.
6. Borla 140769 S-Type Cat-Back Exhaust System (T-304 Stainless)
| Material Type | Stainless Steel |
|---|---|
| Compatible with Vehicle Type | Car |
| Manufacturer Part Number | 140769 |
This Borla S-Type cat-back replaces the factory back half exhaust on split rear exit 2019–2024 Silverado/Sierra 1500 V8 trucks to deliver a deeper, more aggressive exhaust note without cabin drone. Constructed from T-304 stainless steel with mandrel bends and precision CNC fitment, the system is bolt-on and uses the factory tips so appearance stays stock while sound and throttle response improve. Typical installation is straightforward for a DIYer or installer once the factory system is removed, and reviewers report stronger low-end response and modest fuel economy gains. The S-Type is tuned for a lively but not overwhelming tone at cruise, though it can be loud under hard acceleration and when towing. The kit does not include tips and is intended for vehicles with the factory split rear exit; some buyers noted missing or rusty clamp hardware on older trucks so check clamp condition during install. Backed by Borla’s reputation and long warranty, this system suits drivers who want quality materials and the signature Borla sound with minimal in-cabin drone.
Best for: Buyers who prioritize proven performance and confident social proof over bargain options and want a reliably built exhaust that improves sound and low-end response while avoiding cabin drone.
Less Ideal for: Drivers seeking the loudest possible or heavily modified race-oriented exhaust, or those with non–split-rear-exit setups looking for a universal solution.
- Full T-304 stainless steel construction for corrosion resistance and durability
- Mandrel-bent tubing and CNC fitment for smooth flow and accurate fit
- S-Type tuning gives a rich exhaust tone with little to no in-cabin drone
- Bolt-on design that uses factory tips to retain a stock-looking rear appearance
- Reported gains in throttle response and occasional fuel economy improvement
- Does not include exhaust tips so factory tips must be reused or purchased separately
- Fitment limited to factory split rear exit trucks and may require an adapter for certain crew cab bed combinations
Verdict: Choose this Borla S-Type cat-back if you want a high-quality stainless system that delivers the trademark Borla sound and improved response with minimal in-cabin drone for split rear exit 2019–2024 Silverado/Sierra 1500 V8 trucks.
Choosing the Right 2019-2026 GMC Sierra 1500 Cat-back Exhaust System: Key Factors to Consider
Fitment and Vehicle-Specific Routing
Correct fitment matters because the Sierra 1500 uses specific frame and axle layouts across the 2019–2026 years. A properly routed cat-back aligns with the factory hangers, avoids contact with suspension components, and clears the spare tire and heat shields. Poor fitment can cause rattles, shortened hanger life, or exhaust strikes while driving.
When assessing fitment, confirm the system is designed for the Sierra 1500 tailpipe exit location and cab/bed configuration you own. Even small differences in hanger placement or pipe length change installation complexity and the final exhaust angle. Fitment accuracy reduces the need for cutting, welding, or aftermarket hangers and preserves factory ground clearance and departure angles.
Materials and Corrosion Resistance
Stainless steel, typically 304 grade, offers the best long-term resistance to road salt and moisture and helps the system maintain appearance and structural integrity over years of use. Aluminized steel can be a cost-effective option but will show wear earlier in climates with heavy winter salt.
Consider how often you plan to use the truck and the local environment. Frequent highway driving and exposure to corrosive conditions increase the value of higher-grade materials. Also check the quality of welds and flange design because these are common failure points when corrosion begins.
Pipe Diameter and Flow Characteristics
Pipe diameter affects backpressure, torque, and horsepower across the RPM band. A modest increase in diameter over stock can reduce restriction and improve high-rpm flow, but too large a diameter may reduce low-end response important for towing and daily driving.
Match pipe size to your driving needs: smaller diameter increases scavenging and low-end torque, while larger diameter favors top-end power. Also evaluate bends and mandrel bends versus crush bends because smoother bends preserve flow and reduce turbulence that can undermine gains.
Muffler Design and Sound Profile
Muffler type determines the cat-back's sound character. Chambered mufflers, straight-through designs, and packed mufflers each produce different tones from mild to aggressive. The Sierra 1500 benefits from a choice that aligns with how you use the truck: a subtler tone for daily driving and a more open, throaty note for performance-oriented use.
Consider how the system performs at idle, during acceleration, and under load. Some designs produce drone at cruising speeds which can be fatiguing on long drives. Look for systems that specify drone reduction features or include resonators if you want a balanced tone.
Compatibility With Accessories and Towing
If you tow, carry a bed cover, or have a factory hitch accessory, ensure the cat-back maintains clearance and does not interfere with those items. Exhaust exit location and hanger placement can affect whether a rear bumper or hitch-mounted accessory is obstructed.
Also check whether the system retains or interferes with factory sensors and whether any adapters are needed to keep the factory catalytic converter and emissions equipment in place. Maintaining proper clearance preserves functionality and reduces the risk of heat transfer to nearby components.
Installation Complexity and Hardware
Ease of installation impacts cost and how quickly you can enjoy the new system. Bolt-on systems that use factory hangers and simple flange connections minimize time and the need for specialized tools. Systems requiring cutting, welding, or additional hangers increase labor and the chance of fitment adjustments.
Verify whether the kit includes clamps, gaskets, and hangers, and check torque specs and band clamp requirements. A clear installation path reduces the likelihood of leaks and ensures the system seats correctly for consistent sound and longevity.
Sound Profiles and On-Road Behavior
Different cat-back designs change how the Sierra 1500 sounds during idle, acceleration, and steady cruising. Straight-through systems and less restrictive mufflers make the truck louder and add a pronounced midrange and top-end rumble, while chambered mufflers emphasize a more refined tone with less perceived volume.
Consider daily driving and highway cruising when selecting a sound profile. Systems that sound great during hard acceleration can produce annoying drone at typical highway speeds, so look for descriptions of idle, acceleration, and cruise behavior.
- Idle: how the truck sounds when parked or at stoplights
- Acceleration: tone richness and how quickly volume rises
- Cruise: presence and any mid-speed drone
- Under load: tone and backpressure effects while towing or climbing
Towing, Hauling, and Performance Tradeoffs
If you tow or haul regularly, low-end torque and drivability are often more important than top-end power. A cat-back that overly enlarges pipe diameter may sacrifice low-rpm response that matters when pulling a trailer. Choose a system that preserves or slightly improves low-end torque while still enhancing exhaust flow.
Also consider heat management near hitch and bed areas. Systems with well-placed exits and heat shielding reduce heat transfer to cargo and accessories.
- Prefer conservative diameter increases for towing
- Check exit location relative to hitch and bumper
- Look for systems that do not redirect exhaust toward bed or trailer wiring
Resonators and Drone Reduction Strategies
Resonators can be the difference between a satisfying exhaust note and continuous cabin drone. Many cat-back systems include a resonator section or incorporate packing material in the muffler to dampen undesirable frequencies. For highway comfort, confirm whether the design specifically addresses drone.
If drone is a concern, choose a system with an included resonator or one that offers modular resonator placement so you can tune the sound after installation.
- Factory-style resonance control versus aftermarket resonators
- Options for adding or removing resonators post-installation
- How muffler internals affect cabin drone
Finish Options and Long-Term Maintenance
Finish choices include polished stainless, brushed stainless, and ceramic or aluminized coatings. Polished stainless provides a show-ready look and resists corrosion, while coated finishes can protect against surface rust and discoloration in hotter climates. Think about how the truck is used and whether aesthetics or durability is the priority.
Maintenance needs are modest for stainless systems but periodic inspections of hangers, clamps, and welds extend service life. Pay attention to weld quality and flange gaskets during routine checks to prevent leaks and premature wear.
- Polished 304 stainless for appearance and corrosion resistance
- Coated options for added heat and corrosion protection
- Regular inspection intervals for hangers and gaskets
Legal and Emissions Considerations
Depending on your region, modifications to exhaust systems may be subject to noise and emissions regulations. Many cat-back systems are designed to retain the factory catalytic converter and emissions equipment to remain compliant, but confirm local rules regarding modified exhaust sound levels.
Keep documentation of any emissions-compliant features or CARB approvals where applicable. Being aware of local restrictions prevents surprises during inspections or when traveling between jurisdictions.
- Verify preservation of factory catalytic converter locations
- Check local noise ordinances and inspection rules
- Retain documentation for emissions-compliant components
Tailpipe Exit Style and Aesthetics
Tailpipe options influence the truck's final look. Single or dual outlets, round or rolled tips, and tip finish all contribute to the vehicle's presence. Decide whether you want the exhaust to be a subtle complement or a visual upgrade to match other exterior modifications.
Balanced tip placement also affects exhaust routing and may change hanger locations, so aesthetic choices should align with fitment considerations discussed earlier.
- Single versus dual tip layouts
- Tip shape, size, and finish options
- How tip placement affects routing and clearance
Still looking for the perfect fit?
Select your GMC Sierra 1500 configuration to see the most relevant Cat-back Exhaust Systems recommendations
How We Chose the Best 2019-2026 GMC Sierra 1500 Cat-back Exhaust System
We prioritized products that match the 2019-2026 GMC Sierra 1500 scope and that address the most relevant buyer concerns for cat-back systems. Our selection filters included fitment accuracy to the Sierra 1500 2019–2026 frame rails and exhaust routing, construction materials such as 304 stainless steel or aluminized steel, and muffler type and internal packing that influence tone and backpressure. We also considered installation ease including bolt-on fitment and the need for cutting or additional hangers, plus compatibility with factory catalytic converters and any necessary adapter hardware.Evaluation criteria included: verified vehicle-specific fit, weld and flange quality, pipe diameter and flow considerations, muffler design and sound profile, corrosion resistance and finish, and documented installation complexity. We excluded systems that required major chassis modifications, extensive fabrication, or those lacking clear fitment information for the 2019–2026 Sierra 1500. The resulting list focuses on systems that balance durability, predictable sound, and straightforward installation for Sierra 1500 owners.
Our full evaluation process is outlined in our review methodology.
FAQ
Will installing a cat-back exhaust affect my Sierra 1500's towing ability?
It often depends on the system. Most well-designed cat-backs maintain or slightly improve low-end torque if pipe diameter is chosen conservatively. Systems that significantly increase diameter might reduce low-end response, so pick a system that balances flow with torque for towing.
How difficult is catback exhaust installation on the 2019–2026 Sierra 1500?
Many cat-back systems are bolt-on and use factory hangers, making installation manageable with basic tools. Some kits require cutting or additional hardware. Check the kit's installation notes and your comfort with minor fabrication before attempting the job.
Will a stainless steel system resist corrosion better than aluminized steel?
Yes, 304 stainless steel generally offers superior long-term corrosion resistance compared with aluminized steel, especially in regions with road salt or high humidity. Aluminized steel can be a cost-effective option but will typically show wear sooner.
Can a cat-back cause drone at highway speeds?
Some designs can produce drone, particularly those with straight-through mufflers and minimal resonation. Systems that include resonators or have specific drone-mitigation features are less likely to cause sustained cabin vibration at cruising speeds.
Do I need to modify catalytic converters when installing a cat-back?
Most cat-back systems are designed to attach after the catalytic converter and do not require modifications to emissions components. Ensure the kit specifies compatibility with the factory catalytic location for the 2019–2026 Sierra 1500.
How do I choose the right sound level for daily driving and towing?
Consider how often you drive on highways versus city streets and whether you tow. A moderate system with a resonator offers a pleasing tone without intrusive drone, while more aggressive systems are better suited to performance-focused drivers who accept higher cabin sound levels.
Final Verdict
Prioritize fitment, material quality, and the muffler design when choosing a cat-back for your 2019–2026 GMC Sierra 1500. The best system for you balances the desired sound character with pipe sizing that preserves low-end torque for towing and daily driving. Consider installation complexity and finish options based on climate and maintenance preferences.Decide first whether you want a subtle, refined tone or a louder, performance-oriented note, then use fitment and material durability as tie-breakers. That approach helps you select a system that delivers the right sound and long-term value for your Sierra 1500.
Explore More:
- Check out all GMC Sierra 1500 parts & accessories
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