Product Description
Upgrade your LML Duramax with a clean, dual-outlet look and a deeper tone—without touching emissions equipment. The MBRP S6033AL is a 4" aluminized-steel filter-back (DPF-back) exhaust with a dual single-side exit. It’s designed for straightforward, bolt-on installation using factory-style hangers and includes polished tips for a finished appearance.
- 4" mandrel-bent tubing for smooth flow
- Dual single-side exit with included tips
- Installer Series aluminized steel for value & durability
- Emissions-compliant filter-back (no DPF delete)
- Tuned performance sound—refined, not overwhelming
Fitment
2011–2015 Chevrolet Silverado 2500/3500 & GMC Sierra 2500/3500 with 6.6L Duramax (LML), all cabs & beds.
Cross-Reference / Alternatives (MBRP Only)
- Single-Outlet Aluminized (2011–2019): MBRP S6032AL
- Single-Outlet Black Coated (2011–2019): MBRP S6032BLK
- Compatible MBRP Tip (3" ID → 5" OD): MBRP T5187
- Compatible MBRP Tip (3" ID → 4" OD): MBRP T5188CF
Why Buy From CPP Diesel
Fast shipping, diesel-savvy support, and a deep MBRP catalog—so you can get the right system and matching hardware the first time.
FAQ
Does this kit delete or modify emissions equipment?
No. It’s a filter-back (DPF-back) system that retains factory emissions equipment.
Will it fit my crew cab long bed?
Yes—this kit is engineered for 2011–2015 LML trucks and fits all cabs and beds.
What material is the S6033AL?
Installer Series aluminized steel—great value with solid corrosion resistance in most climates.
Do I need extra parts to install?
Hardware and clamps are included for a standard bolt-on install. Pair with the MBRP tips above if you want a different finish or diameter look.
How does it sound compared to stock?
Deeper and more pronounced under throttle, while remaining comfortable on the highway.
