Description
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Description
Want to keep your DPF but still get that deep, aggressive exhaust sound for your 2011-2016 6.7L Powerstroke? Upgrade to SPELAB’s DPF-back pipe! This product is designed for users who want to keep their factory DPF and upgrade the exhaust piping behind it. You can choose between affordable 409 stainless steel (a direct OE replacement that solves rust and aging issues) or premium 304 stainless steel for better durability. Enjoy the black-coated exhaust tip for a sleek look and the expanded outlet diameter for improved sound and flow. Get the rumble you want—without deleting your DPF!
| Parameter | T304 | T409 |
| Corrosion Resistance | 18% Cr, 8% Ni(Better) | 11% Cr, trace Ti(Good) |
| High Temp Resistance | ≤870°C | ≤800°C |
| Oxidation Resistance | Excellent | Good |
| Salt/Cl⁻ Resistance | Excellent | Good |
| Sulfide Resistance | Excellent | Good |
| Estimated Lifespan | 10-15+ years | 7-12 years |
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