Product Description
DIAMOND EYE K4110A is a 4.0" aluminized steel cat-back single exhaust system for 2001–2005 Chevy/GMC Silverado & Sierra 2500/3500 6.6L Duramax (LB7/LLY). It replaces the factory system from the catalytic converter (front pipe) back and includes a performance muffler for a deep, refined tone without drone.
FAQ: WILL THIS FIT MY TRUCK?
Yes—fits 2001, 2002, 2003, 2004 & 2005 Duramax 2500/3500 all cab and bed lengths. This is a cat-back system; it reuses the factory catalytic converter where equipped.
FAQ: DOES IT INCLUDE A MUFFLER?
Yes. K4110A includes a performance muffler (Diamond Eye uses stainless mufflers even in aluminized series) for a strong tone and comfortable cruising.
FAQ: ANY SPECIAL HARDWARE OR TUNING NEEDED?
No tuning is required. The kit includes the required clamps/hangers for a straightforward bolt-on install. Always test-fit before tightening and torque evenly.
Fitment Details
- Platform: 2001–2005 Silverado/Sierra 2500/3500 HD 6.6L Duramax (LB7/LLY)
- Configuration: 4" catalytic-converter-back single side exit
- Cabs/Beds: Fits all cab and bed lengths
Cross-Reference / Alternatives (MBRP-Only)
- MBRP S6000AL — 4" aluminized cat-back single for 2001–2005 Duramax (direct alternative)
- MBRP GMAL413 — 4" Regular Cab adaptor for certain cat-back kits (LB7/LLY RC long box)
- MBRP S6005PLM — 4" aluminized downpipe-back no muffler (01–04 LB7) as a louder alternative
Specifications
| Brand | Diamond Eye Performance |
|---|---|
| MPN | K4110A |
| UPC | 841963100679 |
| GTIN | 0841963100679 (GTIN-12 / UPC-A) |
| System Type | 4" Cat-Back, Single Side Exit |
| Material | Aluminized Steel (muffler is stainless construction) |
| Tubing Diameter | 4.0" |
| Fits | 2001–2005 Chevy/GMC 2500/3500 6.6L Duramax (LB7/LLY), all cabs/beds |
| Shipping Weight | ~68 lb |
| Package Dimensions | Approx. 52" x 21" x 13" |
| Shipping Info | Typically ships free from CPP Diesel (contiguous U.S.) |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
