Gibson Performance 65658 Stainless Dual Extreme Cat-Back
$693.62 price checked August 2026
If you want a system that exits behind each rear tire, this is the one to price-check.
Gibson Performance 65658 Stainless Dual Extreme Cat-Back Overview
The Gibson Performance 65658 Stainless Dual Extreme Cat-Back is for the budget-conscious driver who needs a high-flow system, as its 3 inch/2.25 inch mandrel bent tubing provides the necessary flow for increased performance.
Restricted flow from a factory exhaust often creates backpressure that kills high-RPM power and limits engine performance. If you want to improve your vehicle’s breathing without the complexity of a custom-welded setup, a high-flow exhaust is the standard solution.
The Gibson Performance 65658 Stainless Dual Extreme Cat-Back addresses this by utilizing 3 inch/2.25 inch stainless steel mandrel bent tubing. This specific pipe diameter ensures consistent flow throughout the system, paired with a baffled and chambered design to manage acoustics.
We evaluated the performance exhaust system options we compared to determine how this model fits different budgets. This review is for the buyer who prioritizes a balance of material durability and flow capacity over high-end racing materials like Inconel.
How Carworship picked: we started from the 200 most-reviewed performance exhaust system listings in our retail dataset, removed duplicates, accessories and off-category products, and 116 qualified. This product is one of 10 from that pool chosen for a full review. 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).
The Short Answer on the Gibson Performance 65658 Stainless Dual Extreme Cat-Back
Best for: you need a cat-back system that replaces everything from the catalytic converter back to maximize flow while maintaining a street-legal profile.
The Gibson Performance 65658 Stainless Dual Extreme Cat-Back is the recommendation at $693.62.
- Pro: The 3 inch/2.25 inch mandrel bent tubing provides a larger diameter for high-flow performance.
- Pro: T304 stainless steel construction ensures the material meets the industry benchmark for corrosion resistance.
- Pro: The 4 inch polished slash cut tips offer a larger visual profile than standard replacements.
- Con: The baffled and chambered design may restrict maximum high-RPM power compared to a straight-through system.
- Con: The dual extreme configuration may produce a specific resonance that some drivers find intrusive at highway speeds.
Don’t buy this if: you require a direct-fit system that avoids custom welding or if your vehicle requires a specific axle-back configuration to minimize labor.
Price assessment: The $693.62 price is fair for a T304 stainless steel cat-back system with 4 inch tips.
Carworship score: 8.2/10 (data-driven – see “How we picked” above)
If you are considering a different brand, read our full review of the BORLA 11828 Exhaust.
Owners of the pony car can see top-rated performance exhaust system for ford mustang gt options.
Specifications in Full
| Exhaust Configuration | Dual Extreme |
| Material Grade | T304 stainless steel |
| Pipe Diameter | 3 inch/2.25 inch |
| Tip Design | 4 inch polished T304 stainless steel rolled slash cut |
| Construction | Mandrel bent tubing |
| Design Type | Baffled and chambered |
| Internal Packing | No internal packing |
| Inlet Connection Size | 2.25 Inches |
| Item Weight | 57.4 Pounds |
The 3 inch/2.25 inch diameter ensures high flow for the truck while maintaining the structural integrity of T304 stainless steel.
Where this sits in the buyer data: Among the 116 products screened for this category, this one’s 4.7 rating places it #31, on 37 ratings – above the 11-rating median of that group, so the average rests on more feedback than most of its comparables. On price it undercuts 78 of them.
Before You Buy: Gibson Performance 65658 Stainless Dual Extreme Cat-Back Checklist
The first thing to check is whether your vehicle’s rear bumper and tire well provide enough clearance for a dual-exit configuration.
- ☐ Confirm the exit location—exits behind each rear tire
- ☐ Verify the material grade—T304 stainless steel
- ☐ Check the pipe dimensions—3 inch/2.25 inch mandrel bent tubing
- ☐ Measure the tip size—4 inch polished T304 stainless steel rolled slash cut tip
- ☐ Confirm the system type—Cat-Back (replaces everything from the catalytic converter back)
You should not buy this product if your vehicle requires a specific flow path that does not accommodate a baffled and chambered design with no internal packing.
What These Specifications Let You Do
Baffled and Chambered Design
The Gibson Performance 65658 Stainless Dual Extreme Cat-Back uses a baffled and chambered design to manage exhaust acoustics. This configuration allows you to maintain a deeper tone during heavy acceleration while minimizing the drone that often occurs at highway speeds. Because this system lacks internal packing, the sound profile remains open and resonant rather than muffled.
If you are concerned about a hollow or tinny sound, the chambered design provides the necessary volume for a full-bodied note. You should verify the specific baffle depth with a local installer to ensure the resonance aligns with your preferred volume levels during idling.
T304 Stainless Steel Tips
The Gibson Performance 65658 Stainless Dual Extreme Cat-Back features 4 inch polished T304 stainless steel rolled slash cut tips. T304 stainless steel is the industry benchmark for corrosion resistance, ensuring the tips maintain their structural integrity and polished finish against road salt and heat cycles.
These 4 inch tips provide a larger exit point than standard-sized outlets, supporting a more aggressive aesthetic. The rolled slash cut design helps direct exhaust flow efficiently away from the vehicle’s body while maintaining a high-end finish.
Mandrel Bent Tubing
The Gibson Performance 65658 Stainless Dual Extreme Cat-Back utilizes 3 inch/2.25 inch stainless steel mandrel bent tubing. Mandrel bending ensures the pipe maintains a consistent internal diameter throughout every curve, which prevents the flow restrictions common in standard crush-bent tubing.
Consistent diameters across the 3 inch and 2.25 inch sections support high-RPM power by reducing backpressure. This tubing geometry allows for a smoother exhaust flow that supports the performance goals of a dual extreme configuration.
How the Gibson Performance 65658 Stainless Dual Extreme Cat-Back Compares to Alternatives
The Gibson Performance 65658 Stainless Dual Extreme Cat-Back ranks first in our comparison with a 4.7 rating from 37 buyers. This rating is higher than any other option in our comparison, including the MagnaFlow Jeep Wrangler Rock Crawler Series Exhaust which holds a 4.7 rating from only 8 buyers.
- The Gibson Performance 65658 Stainless Dual Extreme Cat-Back costs $9.94 less than the BORLA 11786 Mazda 3 Mazdaspeed 3 Exhaust.
- The MagnaFlow Jeep Wrangler Rock Crawler Series Exhaust costs $5.62 less than the Gibson Performance 65658 Stainless Dual Extreme Cat-Back.
- The BORLA 140335 Volkswagen Passat CC Exhaust is $25.29 cheaper than the Gibson Performance 65658 Stainless Dual Extreme Cat-Back.
- The MagnaFlow 19291 Toyota Tacoma Exhaust costs $43.67 less than the Gibson Performance 65658 Stainless Dual Extreme Cat-Back.
- The MagnaFlow Toyota Tundra Off-Road Pro Exhaust costs $22.62 less than the Gibson Performance 65658 Stainless Dual Extreme Cat-Back.
The dual-exit configuration on the Gibson Performance 65658 Stainless Dual Extreme Cat-Back provides a premium over single-side systems by utilizing a dual extreme layout with 4 inch polished T304 stainless steel rolled slash cut tips. You should choose the MagnaFlow 19291 Toyota Tacoma Exhaust instead if your primary priority is a lower price point, as it costs $43.67 less than this model.
Gibson Performance 65658 Stainless Dual Extreme Cat-Back Buying Questions Answered
Frequently Asked Questions about the Gibson Performance 65658 Stainless Dual Extreme Cat-Back
Does the Gibson Performance 65658 Stainless Dual Extreme Cat-Back have internal packing?
No, the Gibson Performance 65658 Stainless Dual Extreme Cat-Back features a design with no internal packing. This construction helps prevent the common failure of internal materials melting or rattling over time.
How much does it cost to have this professionally installed?
Installation costs vary by region, but you should budget for a professional shop to handle the mounting and welding. Since the Gibson Performance 65658 Stainless Dual Extreme Cat-Back is a Cat-Back system, the labor typically covers everything from the catalytic converter back.
What is the material grade of the tubing?
The Gibson Performance 65658 Stainless Dual Extreme Cat-Back uses T304 stainless steel for its construction. This grade serves as the industry benchmark for providing high corrosion resistance and structural integrity for performance exhausts.
Does it include the exhaust tips?
Yes, the system includes 4 inch polished T304 stainless steel rolled slash cut tips. These tips exit behind each rear tire to provide a distinct look and improved flow for the exhaust system.
Is the Gibson Performance 65658 Stainless Dual Extreme Cat-Back Right for You?
The Gibson Performance 65658 Stainless Dual Extreme Cat-Back suits 5 kinds of buyer and is the wrong choice for 3 jobs, listed below with the reason for each.
Who the Gibson Performance 65658 Stainless Dual Extreme Cat-Back is for, and what it does well
Who the Gibson Performance 65658 Stainless Dual Extreme Cat-Back suits
- Off-road truck owners — the dual extreme configuration and 3 inch tubing provide the high-flow volume needed for heavy-duty engines
- Custom truck builders — the 4 inch polished T304 stainless steel rolled slash cut tips provide a premium aesthetic for show vehicles
- Daily commuters with loud trucks — the baffled and chambered design manages exhaust notes to keep them from being overly disruptive
- Long-distance overland travelers — the T304 stainless steel material grade offers the durability needed for high-heat and heavy-use environments
- Diesel truck owners — the 3 inch mandrel bent tubing provides the necessary diameter to reduce backpressure on high-torque engines
What the Gibson Performance 65658 Stainless Dual Extreme Cat-Back handles well
- High-torque towing — the 3 inch mandrel bent tubing allows for better airflow under heavy loads
- Show truck displays — the 4 inch polished T304 stainless steel rolled slash cut tips provide a high-end visual finish
- Daily driving — the baffled and chambered design prevents excessive drone and noise
- Heavy-duty hauling — the T304 stainless steel construction ensures the system can withstand extreme heat cycles
- Custom exhaust routing — the dual extreme configuration allows for a balanced layout behind the rear tires
What the Gibson Performance 65658 Stainless Dual Extreme Cat-Back is the wrong choice for
- High-pitched racing notes — the baffled and chambered design muffles the raw exhaust tone
- Ultra-quiet stealth builds — the dual extreme configuration and 3 inch tubing will still produce a noticeable exhaust note
- Compact car fitments — the dual extreme configuration and 4 inch tips are too large for small vehicle chassis
What to budget alongside the Gibson Performance 65658 Stainless Dual Extreme Cat-Back, and what to skip
Worth buying at the same time
- Exhaust hangers — required to secure the dual extreme configuration to the vehicle frame
- Flange adapters — needed to connect the 3 inch tubing to the existing truck exhaust manifold
- Millimeter-accurate measuring tape — needed to ensure the 4 inch tips align correctly behind the rear tires
- High-temperature exhaust sealant — required to ensure a leak-free connection at the 3 inch pipe joints
- Torque wrench — necessary to properly tighten the stainless steel mounting hardware
What you can skip
- Exhaust packing — the design specifically features no internal packing
- Chrome plating kits — the tips are already made of polished T304 stainless steel
Where to Buy the Gibson Performance 65658 Stainless Dual Extreme Cat-Back
These retailers sell Performance Exhaust System generally – we do not track which of them has this particular model in stock, so check availability and the current price with the retailer before making a trip.
- AutoZone (online and physical stores) — convenient in-store availability for common muffler replacements
- Amazon (online only) — broad selection of aftermarket exhaust components
- ExtremeTerrain (online only) — specialized inventory for off-road and 4×4 exhaust systems
- Summit Racing Equipment (online and physical stores) — extensive inventory and specialist staff for performance parts
- AmericanMuscle (online only) — large selection of performance exhaust systems for muscle cars
- JEGS (online and physical stores) — wide variety of performance components and shipping options
Final Verdict on the Gibson Performance 65658 Stainless Dual Extreme Cat-Back
You need a high-flow exhaust that balances durability with a high-volume sound without the expense of titanium materials. The Gibson Performance 65658 Stainless Dual Extreme Cat-Back is the right choice at the $693.62 price point.
The 4.7 rating from 37 buyers confirms this system delivers reliable performance. The 3 inch/2.25 inch mandrel bent tubing and T304 stainless steel construction provide the structural integrity required for a daily driver.
Skip it if: you require a drone-free experience at high speeds or need a system that replaces the catalytic converter for maximum flow.