Product Description
DIAMOND EYE K4163A is a 4" aluminized steel, DPF-back exhaust system engineered for 2011–2015 Chevy/GMC 2500/3500 6.6L Duramax (LML), all cab and bed lengths. Mandrel-bent tubing improves flow, helps lower EGTs, and enhances throttle response while retaining emissions equipment.
FAQ: WILL THIS FIT MY TRUCK?
Yes—if you have a 2011, 2012, 2013, 2014, or 2015 Silverado/Sierra 2500/3500 with the 6.6L Duramax (LML), this DPF-back system is designed to fit all cab and bed configurations.
FAQ: IS THIS LEGAL IN CALIFORNIA?
Filter-back systems typically retain emissions hardware, but local laws vary. Always check your state and local regulations before purchase or installation.
FAQ: WHAT EXIT STYLE IS INCLUDED?
This kit is configured as a dual split-side exit. (Tips sold separately.)
Fitment Details
- Make/Model: Chevrolet Silverado 2500/3500 HD; GMC Sierra 2500/3500 HD
- Engine: 6.6L Duramax (LML)
- Years: 2011, 2012, 2013, 2014, 2015
- Configuration: DPF-back, 4" diameter, dual split-side exit
Cross-Reference / Alternatives (MBRP-only)
- MBRP S6033AL – 4" Aluminized Filter-Back Dual Outlet (2011–2015 GM 6.6L) — View on CPP Diesel
- MBRP S6032304 – 4" T304 Stainless Filter-Back Single Side (2011–2019 GM 6.6L) — View on CPP Diesel
Specifications
| Brand | Diamond Eye Performance |
|---|---|
| MPN | K4163A |
| UPC | 841963103014 |
| GTIN | 0841963103014 (GTIN-12 / UPC-A) |
| Material | Aluminized steel |
| Tubing Diameter | 4.0" |
| System Type | DPF-back |
| Exit | Dual split-side (tips not included) |
| Vehicle Fit | 2011–2015 GM Silverado/Sierra 2500/3500 6.6L Duramax (LML), all cabs/beds |
| Package Dimensions | 52" (L) x 13" (W) x 21" (H) |
| Shipping | Typically ships free from CPP Diesel (see cart for details) |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
