Our Top 3 Picks
You are not here to run a research project. You are here to find a Dual Exhaust System that works and get on with it – these 3 are the ones we picked.
#1 – Flowmaster 815937 U-Fit Dual Exhaust Kit
Best for: DIY installations requiring a slip-fit connection and large-diameter piping.
- 3.00 In. mandrel bent 409 stainless steel pipes
- $553.95 premium price
- 3.3 rating from 6 ratings
- Editorial score: 5.7/10
Pipe Diameter: 3.00 In. · Connection Type: Slip fit
#2 – Gibson Performance 17303 Split Rear Dual Exhaust Kit
Best for: 1973-86 Chevrolet/GMC K-Series trucks needing a bolt-on system.
- Tri-flow design with reversible flow chambers
- $262.99 mid-range price
- 4.6 rating from 4 ratings
- Editorial score: 8.5/10
Pipe Diameter: 2.5 in. · Material Grade: T-304
#3 – Thrush 89024 Dual Exhaust Kit
Best for: budget-conscious buyers wanting T-304 stainless steel tips.
- 2.5 in. pipes with 3.5 in. clampless slash tips
- $259.99 entry price
- 4.2 rating from 118 ratings
- Editorial score: 8/10
Pipe Diameter: 2.5-in.
How Carworship picked: we started from the 156 most-reviewed dual exhaust system listings in our retail dataset, removed duplicates, accessories and off-category products, and 36 qualified. The picks on this page were selected from those 36 candidates against this topic’s requirements. Our scores blend buyer satisfaction (60%), price position against comparable products (25%) and rating volume (15%). Specifications come from manufacturer listings and ratings from verified Amazon buyer reviews (data checked August 2026).
Our Pick and How the List Was Built
The Flowmaster 815937 U-Fit Dual Exhaust Kit is the best Dual Exhaust Kit for diy installation because it features a slip-fit design that simplifies the connection process for home mechanics.
Finding a dual exhaust system that doesn’t require specialized welding or fabrication equipment can be difficult, often leading to complex installation projects that stall in the garage. Selecting a kit with pre-engineered connections ensures you can complete the work without professional fabrication.
The Flowmaster 815937 U-Fit Dual Exhaust Kit solves this by utilizing slip-fit connectors for easier assembly. You should choose the Gibson Performance 17303 if you prefer T-304 stainless steel, or the Thrush 89024 if you need a system specifically for K-Series trucks.
At Carworship we evaluated the dual exhaust system options we track against this topic’s criteria. The selected kits cover a price range from $259.99 to $553.95, with the median price of the 10 products in our comparison being $293.85.
What the data says
- Top pick: Flowmaster 815937 U-Fit Dual Exhaust Kit at $553.95 (Pipe Diameter: 3.00 In.).
- Also picked: Gibson Performance 17303 Split Rear Dual Exhaust Kit at $259.99; Thrush 89024 Dual Exhaust Kit at $262.99.
- We compared 10 Dual Exhaust Systems, from $178.49 to $594.99, median $293.85.
- Best buyer rating in the comparison: Gibson Performance 17303 Split Rear Dual Exhaust Kit at 4.2/5 from 118 ratings.
Full Comparison Table
| Product | Price | Rating | Pipe diameter consistency |
|---|---|---|---|
| Flowmaster 815937 U-Fit Dual Exhaust Kit | $553.95 | 3.3 (6 ratings) | 3.00 In. |
| Gibson Performance 17303 Split Rear Dual Exhaust Kit | $259.99 | 4.2 (118 ratings) | 2.5 in. |
| Thrush 89024 Dual Exhaust Kit | $262.99 | 4.6 (4 ratings) | 2.5-in. |
| Shop Line Dual Exhaust System Flow II | $296.99 | 4.2 (172 ratings) | 2.5″ |
| Flowmaster Super 44 Dual Exhaust Kit | $227.99 | 3.8 (17 ratings) | 2.5 |
| MBRP S4202409 3″ Cat Back Dual Outlet Exhaust | $594.99 | 4.8 (8 ratings) | 3″ |
| Rough Country Performance Dual Outlet Exhaust 96020 | $549.95 | 4.8 (21 ratings) | 2.5″ |
| Shop Line Dual Exhaust System 2.5 AL | $178.49 | 3.9 (76 ratings) | 2.5″ |
| Shop Line Cherry Bomb Extreme 2.5 AL | $222.99 | 2.8 (6 ratings) | 2.5 |
| Stainless Steel Pipes and Muffler Dual Exhaust Kit | $293.85 | 0.0 (0 ratings) | 2.5″ |
Prices are approximate and move frequently – check the current price before deciding.
Our Picks Examined One by One
The 3 picks below run from $259.99 to $553.95, reviewed in rank order.
Flowmaster 815937 U-Fit Dual Exhaust Kit
The Flowmaster 815937 U-Fit Dual Exhaust Kit is a top choice for DIY installation because it utilizes a slip-fit design. This allows for a connection that avoids complex welding or custom fabrication during the assembly process.
What we like: This kit features 3.00 In. pipe diameter and 16 gauge 409 stainless steel construction. The U-Fit design includes front adaptor pipes and an H-pipe to simplify the layout for the installer.
Keep in mind: The 409 stainless steel is a mid-grade material compared to 304 stainless. This kit may not be suitable for buyers seeking the highest possible corrosion resistance in harsh environments.
Does this kit include all the specific brackets and hangers for my exact vehicle model? The Flowmaster 815937 U-Fit Dual Exhaust Kit includes an over the axle pipe and optional tailpipe exit, but the data does not specify vehicle-specific brackets. You should verify the mounting points for your specific year and model before ordering.
Is the material high-grade stainless steel or aluminized steel? The Flowmaster 815937 U-Fit Dual Exhaust Kit uses 409 stainless steel, which provides better rust resistance than aluminized steel but is less corrosion-resistant than 304 stainless steel.
Gibson Performance 17303 Split Rear Dual Exhaust Kit
The Gibson Performance 17303 Split Rear Dual Exhaust Kit is selected for its high-grade material and ease of fitment. The inclusion of 3.5 in. stainless tips and a fully welded muffler makes it a robust option for a DIY project.
What we like: This kit uses T-304 High Polished Stainless Steel for its clampless slash tips. It also includes a Superflow Performance Aluminized Muffler and 2.5 in. pipes for a balanced exhaust flow.
Keep in mind: The muffler in this kit is aluminized rather than stainless steel. This choice may be less durable in coastal areas where salt exposure is frequent.
Does this kit include all the specific brackets and hangers for my exact vehicle model? The Gibson Performance 17303 Split Rear Dual Exhaust Kit includes 2.5 in. pipes and 3.5 in. tips, but the documentation does not list specific vehicle hangers. You must confirm your vehicle’s mounting requirements with the manufacturer.
Is the material high-grade stainless steel or aluminized steel? This kit features T-304 High Polished Stainless Steel for the tips and an aluminized muffler for the main body.
Thrush 89024 Dual Exhaust Kit
The Thrush 89024 Dual Exhaust Kit is ideal for DIY installation because it is a bolt-on system requiring no welding. It is specifically engineered for 1973-86 Chevrolet/GMC full-size K-Series trucks.
What we like: This kit includes the hardware necessary for installation, including hangers and brackets. The 2.5-in. aluminized smooth bend pipes and tri-flow design mufflers provide a complete, ready-to-mount solution.
Keep in mind: The aluminized-coated shell is less resistant to heavy corrosion than stainless steel. This kit is specifically for K-Series trucks and will not fit other vehicle types.
Does this kit include all the specific brackets and hangers for my exact vehicle model? The Thrush 89024 Dual Exhaust Kit specifically includes hangers and brackets for 1973-86 Chevrolet/GMC full-size K-Series trucks.
Is the material high-grade stainless steel or aluminized steel? The Thrush 89024 Dual Exhaust Kit uses 2.5-in. aluminized smooth bend pipes and a 100 aluminized-coated shell.
Owners of a Bronco should view our comparison of the best dual outlet exhaust for Ford Bronco.
How to Choose a Dual Exhaust System
Bolt-on Hardware Availability
Bolt-on hardware availability determines whether you can complete the install without specialized welding equipment. The Thrush 89024 Dual Exhaust Kit includes all necessary hardware, brackets, and hangers for a bolt-on setup, which separated the field for DIY-focused buyers. Because the Flowmaster 815937 U-Fit Dual Exhaust Kit and Gibson Performance 17303 Split Rear Dual Exhaust Kit do not explicitly list a full hardware kit in their specifications, you should confirm if mounting brackets are included before purchasing to avoid extra trips to the hardware store.
Hanger Mounting Points
Hanger mounting points must align with your vehicle’s existing chassis to ensure the system stays secure. The Thrush 89024 Dual Exhaust Kit includes hangers and brackets specifically designed for 1973-86 Chevrolet/GMC K-Series trucks. For other vehicles, you must verify that the mounting points on the provided brackets match your frame’s location, as mismatched points can lead to resonance and drone issues.
Pipe Diameter Consistency
Pipe diameter consistency ensures balanced exhaust flow and prevents backpressure from restricting horsepower. You should prioritize systems with consistent internal diameters, such as the 3.00 in. pipes found in the Flowmaster 815937 U-Fit Dual Exhaust Kit. The Gibson Performance 17303 and Thrush 89024 both utilize 2.5 in. pipes; for high-performance applications, larger diameters like the 3.00 in. option provide a higher flow ceiling than 2.5 in. standards.
Installation Time Estimate
Installation time estimate depends heavily on the connection type, such as the slip-fit design of the Flowmaster 815937 U-Fit Dual Exhaust Kit. Slip-fit connections generally allow for faster assembly than welded joints, but you must still account for the time needed to align the pipes correctly. Because the Thrush 89024 requires no fabrication or welding, it offers a predictable DIY timeline, whereas systems without specific “U-Fit” designations may require more time for alignment and securing.
Decibel Levels and Clearance
Decibel levels vary significantly based on the muffler type, ranging from the “Superflow Performance” aluminized muffler in the Gibson 17303 to the “Turbo” mufflers in the Thrush 89024. Since specific decibel ratings are not provided in the data, you should check the manufacturer’s sound profile to ensure the system meets street-legal requirements for your area. Regarding rear axle clearance, the Flowmaster 815937 includes an over-the-axle pipe to prevent interference; for other kits, you must measure the distance between your rear axle and the chassis to ensure the exhaust path does not hit the tires during suspension travel.
What You Need vs What These Picks Deliver
Match the job you actually need done to what it requires, then check whether anything on this page reaches that level. Where nothing does, the row says so.
| What you want to do | What that needs | What clears it here |
|---|---|---|
| Connect a dual exhaust without welding | Slip-fit or U-fit connections | Flowmaster 815937, Gibson 17303, Thrush 89024 |
| Use a dual exhaust with high corrosion resistance | T-304 Stainless Steel | Gibson 17303 |
| Install a dual exhaust for a truck | Bolt-on hardware for K-Series | Thrush 89024 |
Thresholds are the levels this category is generally held to, not manufacturer claims. Check them against your own workload before buying.
Who Buys Dual Exhaust Systems, and What It Really Costs
Who buys a Dual Exhaust System, and what each one needs
- DIY automotive hobbyists — clamp-on systems that avoid the need for professional fabrication
- Daily commuters — systems engineered to eliminate resonance and drone at highway speeds
- Off-road vehicle owners — aluminized steel options that balance cost-effectiveness with corrosion resistance
- Street performance tuners — systems that avoid restricted flow to prevent high EGTs and power loss
- Home mechanics — kits with proper heat shielding to prevent melting of the vehicle chassis
What to budget for on top of the Dual Exhaust System
- High-temperature exhaust sealant — to ensure leak-free connections at the clamp points
- Exhaust hangers — to secure the piping and prevent vibration against the chassis
- Threadlocker — to prevent bolts from backing out due to engine vibration
- Heat-resistant tape — to protect nearby components from localized heat transfer
What you can leave out of the budget
- Professional welding equipment — because clamp-on systems do not require permanent fusion
- Custom mandrel bend fabrication — because mass-produced kits provide sufficient flow for DIY needs
- Competition-grade mufflers — because these exceed the performance ceiling for standard DIY installations
Where this kind of product is normally sold
- Online automotive specialty stores — offers a wider selection of materials like T409 and T304 stainless
- Local performance shops — provides the benefit of hands-on fitment advice and immediate warranty handling
- General automotive parts retailers — typically offers lower prices but may have limited shipping options for large pipes
- E-commerce marketplaces — allows for easy price comparison but requires careful verification of shipping dimensions
You can see our full review of the Cherry Bomb Extreme to see how it handles high-flow needs.
For a deeper look at the specific specs, read our full review of the Shop Line Dual Exhaust.
What Buyers Still Want to Know
Which dual exhaust system is best for a DIY installation?
The Flowmaster 815937 U-Fit Dual Exhaust Kit is designed for DIY installation using slip fit connectors and front adaptor pipes. These connections allow for a bolt-on setup that avoids the need for professional-grade welding or fabrication.
Will I need to cut the factory exhaust piping?
The Flowmaster 815937 U-Fit Dual Exhaust Kit uses a slip fit design, which typically eliminates the need to cut factory piping. You should verify the specific connection points on your vehicle to ensure the slip fit aligns with your existing mounting points.
How difficult is the welding vs. bolt-on process for these kits?
The Thrush 89024 Dual Exhaust Kit is a bolt-on system that requires no welding or fabrication. It includes the necessary hardware, hangers, and brackets to secure the 2.5-in. aluminized smooth bend pipes to your vehicle.
Which dual exhaust system is best for a balance of durability and flow?
If you prioritize long-term corrosion resistance, the Gibson Performance 17303 Split Rear Dual Exhaust Kit uses T-304 High Polished Stainless Steel. This kit provides a 2.5 in. pipe diameter and includes 3.5 in. stainless tips for a balance of material quality and exhaust flow.
If you want a corrosion-resistant setup, see our comparison of the best stainless dual exhaust systems.
Who Should Skip These Dual Exhaust Systems
You should confirm your vehicle’s specific clearance and header bolt patterns before ordering. Because these kits require specific fitments, a qualified installer should perform the mounting to ensure proper heat shielding and alignment. If you require custom-fabricated mandrel bends or high-flow headers that exceed the flow dynamics of mass-produced kits, these options may not meet your performance ceiling.
If you require a system that provides specialized resonance dampening for high-speed highway cruising beyond these bolt-on designs, you should look for competition-grade systems from brands like Borla or Magnaflow. For those seeking a different balance of performance, see best dual exhaust system for daily performance.