Product Description
Upgrade your L5P Duramax with the MBRP S6059AL Armor Lite 4" DPF-Back Single Side Exit system. This aluminized steel kit frees up post-DPF flow, lowers EGTs, and adds a clean, purposeful tone while retaining emissions equipment. Includes a polished 5" tip, all clamps, and hardware for a straightforward, bolt-on install.
Fitment
- 2020–2024 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax (L5P)
- 2020–2024 GMC Sierra 2500HD/3500HD 6.6L Duramax (L5P)
- Extended/Crew Cab configurations
- DPF-back; retains factory emissions equipment
Why Choose Armor Lite
- 4" mandrel-bent aluminized steel tubing with tour profile sound
- Direct-fit, uses OEM hangers; no welding required
- Includes polished T304 stainless tip
- Backed by MBRP 3-Year warranty (Armor Lite)
Cross-Reference / Alternatives (MBRP-only)
- MBRP S6059BLK — Armor BLK black-coated DPF-back
- MBRP S6059304 — Armor Pro T304 stainless DPF-back
- MBRP T5129 — 5" inlet x 8" OD x 18" length polished tip
- MBRP T5129BLK — 5" inlet x 8" OD x 18" length black tip
Specifications
| Brand | MBRP |
| Series | Armor Lite (formerly Installer Series) |
| Part Number | S6059AL |
| UPC | 882963128706 |
| Material | Aluminized steel (16-ga) |
| Pipe Diameter | 4" |
| Exit | Single side (behind passenger rear tire) |
| Tip | Included — Polished T304, 5" inlet |
| Configuration | DPF-back (emissions-intact) |
| Warranty | 3-Year (Armor Lite) |
FAQ
Will this fit my 2020–2024 Silverado/Sierra 2500/3500 6.6L Duramax?
Yes. It is designed for 2020–2024 GM 2500HD/3500HD trucks with the 6.6L Duramax (L5P). Extended and Crew Cab configurations are supported.
Is this a DPF-back system and emissions compliant?
Correct. It installs after the factory DPF and retains emissions equipment. Always follow local/state regulations.
What tip size works if I want a different look?
This system ends in a 5" outlet. Compatible options include MBRP T5129 (polished) and T5129BLK (black), both with 5" inlets for a perfect clamp-on fit.
What are good MBRP upgrades if I want stainless or black coated?
Check out MBRP S6059304 (T304 stainless) for maximum corrosion resistance or S6059BLK for a black-coated finish—both are direct DPF-back alternatives.
