Flowmaster Super 40 Muffler 409S - 3.50 Offset In / 3.50 Offset Out
Flowmaster® introduces their new Super 40 Series muffler intended for late model pickup trucks with 3.5in OEM tubing size. This muffler features a 3.5in offset inlet/offset outlet configuration with larger 4.0in internals for maximum flow capabilities with the larger engine sizes found in today's trucks. Being a Super 40 design, this muffler will deliver a deep, aggressive sound outside and inside the vehicle. Fully welded with 409S Stainless Steel, these mufflers are covered by Flowmaster's Lifetime Limited Warranty and are made in the USA.
- 409S Stainless Steel Construction
- Dyno Tuned For Maximum Performance
- Patented Delta Flow Technology
| Inlet Diameter (in) | 3.5 | Inlet Position | Offset |
|---|---|---|---|
| Material | Stainless Steel | Outlet Diameter (in) | 3.5 |
| Outlet Position | Offset | Body Width (in) | 10 |
| Body Length (in) | 13.5 | Body Height (in) | 5 |
| Sound Level | Aggressive Sound | Shape | Oval |
| Inlet Connection Type | Pipe Connection |
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FAQs
Please read our FAQs page to find out more.
Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.


