Product Description
DIAMOND EYE K5131S is a 5.0" 409 stainless steel DPF-back single-exit exhaust for 2007.5–2010 Chevy/GMC 2500/3500 6.6L LMM Duramax (all cab & bed lengths). It includes the stainless Turbo Direct Pipe (#321056) and a vented stainless tip, delivering lower EGTs and a clean, authoritative tone while remaining emissions legal when used as intended.
FAQ: WILL THIS FIT MY TRUCK?
Yes—if you have a 2007.5, 2008, 2009, or 2010 Silverado/Sierra HD with the 6.6L LMM Duramax, this kit fits all cab and bed configurations. Always verify your engine (LMM) and model year split (2007.5 “new body style”).
FAQ: IS IT STAINLESS?
Yes, the K5131S system is constructed from 409 stainless steel for corrosion resistance and durability in harsh climates.
FAQ: WHAT ABOUT EMISSIONS / C.A.R.B.?
The kit includes Turbo Direct Pipe #321056, which is listed under C.A.R.B. EO D-778. Use only on vehicles and configurations covered by the EO and always retain required emissions hardware.
Fitment Details
- Vehicle: 2007.5–2010 Chevrolet Silverado 2500/3500 HD; 2007.5–2010 GMC Sierra 2500/3500 HD
- Engine: 6.6L Duramax LMM
- Configuration: DPF-back, single passenger-side exit, all cab & bed lengths
Cross Reference & Related Items
- Aluminized version of this system: Diamond Eye K5131A
- Included Turbo Direct Pipe: Diamond Eye 321056 (C.A.R.B. EO D-778)
Specifications
| Brand | Diamond Eye Performance |
|---|---|
| MPN | K5131S |
| UPC | 841963121650 |
| GTIN | 0841963121650 (UPC-A) |
| Material | 409 Stainless Steel |
| System Type | 5.0" DPF-Back, Single Exit (Passenger Side) |
| Includes | Turbo Direct Pipe #321056; Vented Stainless Tip |
| C.A.R.B. | EO D-778 (applicable to #321056; see EO for exact coverage) |
| Shipping Weight | ~79 lb |
| Package Dimensions | 52" x 21" x 13" |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
