The Shop Line Flowmaster Super 40 Dual Exhaust is compatible with the specific truck models listed in the manufacturer’s official compatibility chart, which typically includes various gas and diesel configurations for popular light-duty pickups.
The Flowmaster Super 40 is a dual-tip muffler system that replaces the factory exhaust to provide a deeper tone. We selected this system for our comparison because it provides a balance of flow and sound for daily drivers. Because dual exhaust systems require specific piping layouts to clear the chassis, you must confirm if your truck’s engine configuration—such as a turbo diesel versus a naturally aspirated gas engine—requires a different manifold transition. Identifying the correct sub-model is critical because manufacturers often group years together that have different frame geometries, which may necessitate a custom-fabricated “Y-pipe” or adapter. Furthermore, you should verify if your specific truck requires subframe “notching” or modifications to clear the larger diameter piping of the Super 40.
What to Check Before Buying the Flowmaster Super 40
Before ordering, confirm these technical details to ensure the kit fits your specific vehicle and local requirements:
- Verify if the kit includes all necessary hangers and gaskets or if these must be purchased as separate hardware.
- Check for any subframe clearance issues that would require professional notching or modification.
- Confirm the amount of ground clearance lost at the rear to ensure the system does not scrape on inclines.
- Consult your local regulations regarding emissions-related restrictions or “delete” concerns for your specific truck model.
- Confirm whether your specific year and sub-model requires a custom adapter to connect to the factory headers.
Comparing the Flowmaster Super 40 to Other Exhaust Systems
The Flowmaster Super 40 sits in the mid-range of the exhaust category, offering a recognizable deep growl without the extreme volume of competition-grade systems. If you prioritize maximum flow dynamics or need a system that can handle high-horsepower racing applications, you may want to look at high-flow headers or custom-fabricated mandrel bends. Conversely, if you prefer a more subtle tone that stays closer to the original factory sound, a standard single-exit muffler might be a more appropriate choice for your truck.
If you want a balance of improved exhaust note and reliable durability for a daily-driven truck, the Flowmaster Super 40 is a suitable choice. However, if your truck has unique frame modifications or specific clearance issues, you should consult a qualified installer to confirm fitment before purchasing.
If you need a balanced setup, see our guide to the best dual exhaust system for daily performance.
Shop Line Flowmaster Super 40 Dual Exhaust
$305.99 price checked August 2026