Custom Exhaust System | 4” / 5” High-Flow Stainless Exhaust | 2001‐2025 Chevy / GMC Duramax
We offer fast and free reliable shipping for all customers to ensure that you receive your products as soon as possible. Shipping generally takes 3-8 days to transit to you depending on where you're located in the US and Canada. Hawaii, Alaska, and other remote areas may take longer and invoke further shipping expense. Please contact us if you're want more information.
We understand the importance of clarity in our return procedures, both for our customers' peace of mind and for ensuring a smooth process. We've outlined our updated guidelines to facilitate efficient returns here.
Complete your kit with these upgrades!
Straight-Through Diesel Muffler 3” / 4” / 5” | T409 Stainless | Dyno Diesels
Upgrade your truck's sonic profile and performance with our advanced mufflers. Features include a straight-through flow path for optimal performance, a non-directional design for flexible installation, and durable stainless steel mesh and fiberglass construction for longevity and resilience against harsh conditions. The straight-through design minimizes back pressure, boosting overall performance. Brand varies depending on size needed and truck.
Stainless Steel Exhaust Tip – Chrome or Black Finish | Multiple Sizes Available
Upgrade your truck's exhaust with a Stainless Steel Tip for a sleek look and lasting durability, resistant to corrosion and harsh weather conditions. Elevate your vehicle's style and performance.
Product Information
Product Description
Dyno Diesels Custom Exhaust Systems
2001-2024 CHEVY / GMC L5P DURAMAX
Built from Stainless. Designed to Survive Extinction.
Dyno Diesels custom exhaust systems are engineered with one priority: maximum flow and long-term durability. Built with thick materials and a simple, high-flow design, these systems eliminate unnecessary restrictions and deliver raw exhaust performance inspired by prehistoric power.
Some stainless selections and certain cab & chassis configurations may be specialty-built to ensure proper fitment and performance.
Exhaust Material Options
Aluminized Steel (Most Popular)
A strong, cost-effective option designed for performance applications. Aluminized steel offers excellent durability but may develop surface rust over time, especially in harsh environments.
T409 Stainless Steel
Recommended for trucks that see winter driving or salted roads. T409 stainless is magnetic by nature—this is normal and does not mean it isn’t stainless. Built to withstand heat, moisture, and abuse while maintaining structural integrity.
Use the drop-down menu to select your preferred material and configuration.
Installation
- Typical install time: several hours with basic hand tools
- Can be installed in a driveway or garage (faster with a vehicle lift)
- Cutting may be required for certain cab/bed or shorter wheelbase setups
- Clamps, hangers, and hardware included
- Some factory hardware may need to be reused
Designed for a straightforward, no-nonsense installation.
Features
- No Bungs – Clean, race-ready configuration
- With or Without Muffler – Muffler available separately
- 4” or 5” Diameter Options – Built for serious airflow
- Aluminized Steel or T409 Stainless Steel
- OE-Style Hangers – Factory-style mounting for easier installation
- Maximum Flow Design – Engineered for competition-style applications
These exhaust systems reflect the Dyno Diesels prehistoric mindset—thick materials, simple design, and relentless performance. Built to outflow, outlast, and outperform modern restrictions.
Dyno Diesels — Ancient strength. Relentless flow. No extinction events.
*Exhaust picture rendering may appear more shiny than actual Exhaust System.
Powerlevel Options
Product Compatibility
Other Information and Resources
Satisfied Customers
Hear what our customers have to say about our diesel parts.
