
Ram Cummins Custom Exhaust System 4” / 5” | 2004–2024 | Dyno Diesels
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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 System
Ram Cummins 2004–2024
Built for Cummins owners who demand maximum exhaust flow, durability, and a clean performance setup, the Dyno Diesels Custom Exhaust System is engineered to eliminate unnecessary restrictions while delivering reliable, high-flow performance. Designed with a prehistoric mindset—strong materials, simple construction, and relentless airflow—this system is built to perform in harsh conditions.
Certain stainless configurations and cab & chassis applications may be specialty-built to ensure proper fitment and performance.
Exhaust Material Options
Aluminized Steel
A cost-effective, performance-proven option offering excellent strength. Aluminized steel may develop surface rust over time, particularly in harsh or wet 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 is not stainless. Built to handle heat, moisture, and abuse while maintaining long-term structural integrity.
Use the drop-down menu to select your desired material and configuration.
Installation
- Typical install time: 3–6 hours with basic hand tools
- Can be installed in a driveway or garage (faster with an automotive lift)
- Cutting may be required for certain cab/bed or shorter wheelbase configurations
- 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 – Configure sound level to your build
- 4” or 5” Diameter Options – Built for serious airflow
- OE-Style Hangers – Factory-style mounting for easier installation
- Maximum Flow Design – Engineered for competition-style applications
This exhaust system reflects the Dyno Diesels prehistoric philosophy—simple, strong, and built to outlast modern restrictions.
Dyno Diesels — Ancient strength. Relentless flow. No extinction events.
⚠️ Image Disclaimer
Product images may appear more shiny or polished due to lighting and rendering effects. Actual exhaust finish may vary depending on material selection and manufacturing process.
Powerlevel Options
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