Stainless Steel Diesel Muffler
Diesel Performance Exhaust Muffler: Upgrade Your Truck’s Sound and Performance
Fits a wide range of diesel vehicles, including Cummins, Duramax, and Powerstroke trucks.
Enhance your truck’s sound and performance with our T409 Unpolished Mufflers, available in 4-inch and 5-inch sizes to suit your needs. Pair with Black Bandit Exhaust Systems for seamless installation, thanks to pre-bent and pre-welded hangers.
Perfect for both classic and modern diesel trucks, these mufflers deliver a bold exhaust note and improved performance.
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.
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.
Note:
- Off-Road Use Only: Product is intended for off-road use only. They may not be legal for use on public roads where emissions or safety laws apply.
- Check Local Laws: Before buying or installing any parts, check your local laws to ensure the modifications are legal.
- Professional Installation Recommended: We strongly recommend professional installation. These parts are designed for users with advanced mechanical knowledge. Installation instructions are not included unless stated on the product page. Some adjustments or modifications may be required. We do not offer returns or refunds for installations that can’t be completed.
- Warranty Notice: Installing these parts may void your vehicle’s warranty. Please check with your manufacturer.
- No Liability: JS Speedshop is not responsible for any damage or issues caused by the use of these parts.
- Product Images: Images shown are for reference only. Actual products may differ in color, branding, or design.
- No Performance Guarantees: These parts are intended to improve performance, but results may vary and are not guaranteed.
- Please Review: Make sure to read our Terms & Conditions, Shipping Policy, and any known issues before purchase.
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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.
