The Auto Dynasty 370Z Burnt Muffler features a 4.5-inch outer diameter (OD) muffler tip and a 2.25-inch OD inlet and outlet. This system provides a high-performance racing design that replaces the original factory exhaust on a 2009-2019 Nissan 370Z.
The 370Z Burnt Muffler uses T-304 stainless steel for its construction, which is a standard for high-grade corrosion resistance in exhaust systems. We selected this system for our comparison because it utilizes computerized mandrel-bends and a TIG-welded CNC machine flange to maintain structural integrity under high heat. The 4.5-inch tip diameter is significantly larger than the 2.25-inch inlet, which increases the high exhaust air flow rate and can increase low-end torque by 15-25 horsepower. Because cat-back exhaust systems are mounted directly to the rear of the vehicle, the 4.5-inch diameter requires you to confirm that the tip will not interfere with the rear bumper or factory heat shields, as large diameters often require custom trimming or brackets. The “burnt” finish is a heat-treated aesthetic; you should verify with the manufacturer if this specific finish is permanent or a surface coating that may flake over time. The system includes the necessary gaskets and hardware for a direct bolt-on OE fitment.
What to Check Before Buying the 370Z Burnt Muffler
Verifying these specific details ensures the exhaust system functions correctly and fits your specific vehicle configuration.
- Confirm rear bumper clearance for the 4.5-inch OD tip to avoid the need for custom cutting.
- Verify if the burnt finish is a permanent heat-treated effect or a coating that requires maintenance.
- Check the manufacturer’s support page to confirm the specific weld standards used for the CNC flange.
- Ensure your vehicle’s chassis provides enough clearance for the 80 LBS weight of the assembly.
- Confirm that the 2.25-inch inlet matches your current mid-pipe configuration for a direct bolt-on fit.
Comparing the 370Z Burnt Muffler to Other Cat-back Exhausts
This system is a cat-back exhaust, which is a type of aftermarket pipe and muffler assembly that replaces the section of the exhaust from the catalytic converter to the rear. The 370Z Burnt Muffler serves as a mid-range performance upgrade for owners who prioritize a specific aesthetic and a noticeable increase in airflow. If you require a more subtle sound profile or a lighter weight for track use, you might look for systems using thinner-walled tubing or different muffler core diameters. Conversely, if you need a full-system overhaul to change the sound before the catalytic converter, this cat-back design will not provide those results.
If you want a high-flow racing design with a distinct heat-treated look and a direct bolt-on fit for a 370Z, the 370Z Burnt Muffler is the appropriate choice.
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Auto Dynasty 370Z Dual Burnt Muffler Tip Exhaust
$118.90 price checked August 2026