Stainless Steel Diesel Muffler
Type: Diesel Performance Exhaust Muffler
Diesel Performance Exhaust Muffler: Upgrade Your Truck’s Sound and Performance
Enhance your truck’s sound and improve performance with our Diesel Performance Exhaust Muffler. Available in two models—T409 Unpolished 4-inch Muffler and T409 Unpolished 5-inch Muffler—you can choose the perfect fit for your vehicle. Whether you want a throaty exhaust note or enhanced performance, we have you covered.
Vehicle Fitment
Our mufflers are universally designed to fit a wide range of diesel vehicles, including Cummins, Duramax, and Powerstroke trucks. Additionally, when paired with Black Bandit Exhaust Systems, which come with pre-bent and pre-welded hangers, installation is seamless. These mufflers are the ideal upgrade for both classic diesel trucks and the latest models.
Product Options
| FEATURE | 4-Inch | 5-inch |
| Material |
T409 Unpolished Stainless Steel |
T409 Unpolished Stainless Steel |
| Inlet Size | 4-inch inner diameter | 5-inch inner diameter |
| Outlet Size | 4-inch inner diameter | 5-inch inner diameter |
| Overall Length | 20.25 Inches | 20.25 inches |
| Body Length | 14 inches | 14 inches |
| Body Size | 7-inch round | 8-inch round |
Product Features:
Our mufflers offer several features, all designed to deliver superior airflow and improved sound quality:
- Straight-through flow path: This maximizes performance by reducing back pressure.
- Non-directional design: You can install it in either direction, providing flexibility.
- Stainless steel construction: Built for durability, these mufflers withstand harsh conditions.
- Internal mesh and fiberglass: This advanced design absorbs unwanted interior resonance, ensuring a richer, deeper exhaust note.
Why Choose Black Bandit Diesel Performance Exhaust Mufflers?
4 inch diesel muffler and 5 inch muffler for diesel are not just components; they are upgrades. With a straight-through design to reduce back pressure, you will experience enhanced performance and a rich, throaty exhaust sound.
And if you want to add the perfect finishing touch to your upgraded exhaust system, consider pairing it with our T304 exhaust tips for a complete transformation.
Important Notes:
Be sure to select the correct size for your vehicle whether you are selecting 4 diesel muffler or a 5 inch muffler for diesel and check compatibility with your exhaust system to ensure the best fit and performance. Mufflers do not come with any hardware, you may need to weld it in or provide your own clamps if the exhaust system you are using doesn't have the appropriate "muffler-delete pipe" to directly replace with the muffler.
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Shipping
We strive to provide fast and reliable shipping options for all our customers. For detailed information about our shipping rates, delivery times, and policies, please visit our Shipping Page.
Return Policies
Your satisfaction is important to us. If you wish to return an item or request a refund, please review the terms and conditions outlined in our Returns Policy.
Important Notices
- Off‑Road Use Only
Products sold by JS Speed are intended for off‑road use and may be illegal on public roads where emissions or pollution‑control laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.
