After researching manufacturer specifications, owner feedback, and industry standards, we evaluated the top exhaust stack kits designed for gas trucks. Each kit was compared for material quality, ease of installation, sound output, and safety compliance. Our guide highlights real strengths and limitations to help you choose the right stack kit for your truck.
| Photo | Product | Score | Buy |
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MagnaFlow 19316 Exhaust Stack Kit Best Overall 5-inch diameter, 304 stainless steel, 48-inch straight stack |
9.2 | 🛒 Check Price |
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MBRP S6207AL Aluminized Exhaust Stack Kit Best Value 5-inch diameter, aluminized steel, 48-inch straight stack |
8.9 | 🛒 Check Price |
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Flopro 5 Inch Chrome Exhaust Stack Kit Best Chrome Finish 5-inch diameter, chrome-plated steel, 48-inch stack with miter cut |
8.5 | 🛒 Check Price |
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RBP 5 Inch Stainless Steel Stack Kit Premium Stainless 5-inch diameter, brushed stainless steel, 48-inch stack |
8.3 | 🛒 Check Price |
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Flowmaster 8201515 Exhaust Stack Kit Sound Tuned 5-inch diameter, aluminized steel, 48-inch stack with Flowmaster muffler |
8.1 | 🛒 Check Price |
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Diamond Eye Performance 5 Inch Stack Kit Budget Friendly 5-inch diameter, aluminized steel, 48-inch stack with miter cut |
7.8 | 🛒 Check Price |
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Pypes Performance Exhaust SGG50 Stack Kit Unique Design 5-inch diameter, aluminized steel, 48-inch stack with rolled edge tip |
7.5 | 🛒 Check Price |
1. MagnaFlow 19316 Exhaust Stack Kit: Best Overall
The MagnaFlow 19316 consistently earns top marks from owners for its deep tone and solid construction. We compared its 304 stainless steel against aluminized steel kits and found superior long-term corrosion resistance. The 5-inch diameter provides a balanced sound that is loud when accelerating but settles at cruising speeds. However, it is not a true bolt-on for all trucks; some owners report needing to trim the downpipe for a perfect fit.
If you want a kit that will outlast the truck and sound great doing it, this is our top pick. But if you are on a tight budget or prefer a more subtle exhaust note, consider a smaller diameter or aluminized option.
- Premium 304 stainless steel resists corrosion and heat discoloration
- Deep, aggressive sound without excessive drone at highway speeds
- Includes all necessary clamps and mounting hardware for straightforward installation
Pros: Excellent build quality and weld finish; Minimal cab drone compared to similar kits; Fits most gas truck models with minor modifications
Cons: Higher price point than some competitors
2. MBRP S6207AL Aluminized Exhaust Stack Kit: Best Value
We researched owner feedback and found the MBRP S6207AL delivers a satisfying rumble at a fraction of the cost of stainless kits. The aluminized steel holds up well in most conditions, but we noted that in areas with heavy road salt, the coating can degrade over time. The mandrel bends are clean, and the sound is aggressive without being obnoxious.
This kit is ideal for budget-conscious owners who want a classic stack look and sound. However, if you live in the Rust Belt or plan to keep the truck for many years, investing in a stainless kit may be wiser.
- Aluminized steel offers good corrosion protection at a lower cost
- Mandrel-bent tubing for smooth flow and consistent sound
- Includes a polished stainless steel tip for a clean look
Pros: Affordable without sacrificing sound quality; Easy installation with included hardware; Polished tip adds visual appeal
Cons: Aluminized steel may not last as long as stainless in salt-belt climates
3. Flopro 5 Inch Chrome Exhaust Stack Kit: Best Chrome Finish
We evaluated the Flopro kit for its visual appeal and found the chrome plating to be among the best in its class. Owners praise the mirror-like finish, but we caution that chrome requires gentle handling to avoid scratches. The miter cut tip adds a unique style that many truck enthusiasts prefer. In terms of sound, it is similar to other 5-inch kits, offering a deep tone without excessive drone.
This kit is perfect for show trucks or owners who want maximum bling. Skip it if you frequently drive off-road where rocks and debris could damage the chrome.
- Show-quality chrome plating resists tarnishing and looks great
- Miter cut tip adds a custom appearance
- Includes heavy-duty mounting bracket and hardware
Pros: Eye-catching chrome finish; Solid construction with thick steel; Miter cut tip stands out from straight cuts
Cons: Chrome can chip if not handled carefully during installation
4. RBP 5 Inch Stainless Steel Stack Kit: Premium Stainless
The RBP kit is built tough, with thicker steel than many competitors. We compared its 16-gauge construction to thinner 18-gauge kits and found it less prone to denting. The brushed finish is practical for daily drivers, as it does not show water spots or smudges easily. Sound is deep but not overwhelmingly loud, making it suitable for those who want a moderate exhaust note.
This is a great choice for work trucks or off-road rigs that take a beating. However, if you prefer a polished show finish or need a true bolt-on kit, you may want to look elsewhere.
- Brushed stainless steel finish hides fingerprints and smudges
- Thick 16-gauge steel for durability
- Designed to fit most gas truck applications with minor adjustments
Pros: Rugged construction that resists dents; Subtle brushed finish suits work trucks; Good sound quality with a low rumble
Cons: Installation may require cutting the downpipe for some models
5. Flowmaster 8201515 Exhaust Stack Kit: Sound Tuned
We researched owner reviews and found that the Flowmaster kit delivers the classic aggressive tone the brand is known for. The included muffler is a plus, but it also means the system is louder than many other stack kits. Some owners report drone at cruising speeds, which can be fatiguing on long drives. The aluminized steel is adequate but not as durable as stainless.
If you want the loudest, most aggressive sound possible, this kit is for you. But if you use your truck for road trips or daily commuting, consider a kit with a resonator or quieter muffler.
- Includes a Flowmaster muffler for a signature aggressive sound
- Aluminized steel construction with a polished tip
- Straight-through design for maximum flow
Pros: Iconic Flowmaster sound that many owners love; Muffler included for a complete system; Good throttle response improvement
Cons: Can be too loud for some, especially on long trips
6. Diamond Eye Performance 5 Inch Stack Kit: Budget Friendly
The Diamond Eye kit offers the lowest entry price for a 5-inch stack. We compared its material thickness and found it to be 18-gauge, which is thinner than premium kits. Owners report that it sounds good initially, but the coating may show wear after a few seasons. Installation is straightforward, making it a good DIY option.
This kit is best for temporary use or if you are not concerned about long-term durability. If you want a stack that will last many years, invest in a thicker stainless kit.
- Affordable option for those on a tight budget
- Miter cut tip for a custom look
- Includes all necessary clamps and hardware
Pros: Lowest price among quality stack kits; Simple bolt-on installation for most trucks; Decent sound for the money
Cons: Thinner steel may dent more easily; Aluminized coating can peel over time
7. Pypes Performance Exhaust SGG50 Stack Kit: Unique Design
We evaluated the Pypes kit for its rolled edge tip, which is a safety feature that prevents cuts during installation and use. The universal design means it may not bolt directly onto all trucks; owners often need to weld or fabricate brackets. The sound is moderate and not as deep as MagnaFlow or Flowmaster kits. The black powder coat is a nice alternative for those who dislike chrome.
This kit is suitable for custom builds where you plan to modify the mounting. If you want a straightforward install with a proven sound, skip this one.
- Rolled edge tip for a finished look and safety
- Aluminized steel with a black powder-coated option
- Designed for universal fitment on gas trucks
Pros: Rolled tip reduces sharp edges for safer handling; Black powder coat option for a stealth appearance; Universal design fits many trucks
Cons: Fitment may require significant modification on some models; Sound quality is average compared to competitors
Frequently Asked Questions
Are exhaust stack kits legal on gas trucks?
Legality varies by state and local laws. Many areas require exhaust systems to stay below a certain decibel level and to exit behind the cab or at the rear of the vehicle. Check your local noise ordinances and emissions regulations before installing a stack kit. Some kits are not CARB compliant in California.
Will a stack kit affect my truck's performance?
A properly sized stack kit can reduce backpressure and improve exhaust flow, potentially increasing horsepower and torque. However, on gas trucks, gains are typically modest (5-15 hp). The sound will be louder and deeper. Ensure the kit is matched to your engine size for best results.
Can I install a stack kit myself?
Installation difficulty ranges from moderate to challenging. Most kits require cutting the existing exhaust and welding or clamping the stack in place. Owners with basic mechanical skills and tools can do it, but professional installation is recommended for a leak-free fit. Always follow the included instructions and safety gear.
How do I prevent exhaust fumes from entering the cab?
Proper installation is key. Ensure the stack exits above the roofline and that all connections are sealed with high-temperature silicone or gaskets. A well-designed stack kit will route fumes away from the cab. Also, check for any leaks after installation and keep windows closed while idling.
What size stack should I get for my gas truck?
Most gas trucks use 4-inch or 5-inch diameter stacks. A 5-inch stack provides a deeper sound and more visual impact, but may be too loud for some. A 4-inch stack is quieter and may be easier to install. Consider your engine displacement and personal preference. Always verify fitment with your truck’s existing exhaust pipe size.
Our Verdict
After researching and comparing the top exhaust stack kits for gas trucks, our top pick is the MagnaFlow 19316 for its superior stainless steel construction, balanced sound, and long-term durability. The runner-up is the MBRP S6207AL, offering excellent value and a great sound at a lower price point. Both kits are well-regarded by owners and meet our criteria for performance and reliability.
Last reviewed and spec-checked: June 1, 2026. We re-check our picks and listings periodically.
