Product Description
DIAMOND EYE 321051 is the 4.0" first-section, passenger-side tailpipe for 2001–2007.5 Chevy Silverado / GMC Sierra 2500–3500 6.6L Duramax (all cab/bed lengths). Built from aluminized steel with smooth CNC mandrel bends, it restores OE-style routing with improved flow and long service life as part of Diamond Eye’s Performance Series.
FAQ: WILL THIS FIT MY TRUCK?
Yes—if you have a 2001–2007.5 Silverado/Sierra 2500/3500 with the 6.6L Duramax (LB7/LLY/LBZ) and you need the first section tailpipe on the passenger side. For 2007.5–2010 LMM applications, see our LMM-specific tailpipes.
FAQ: WHAT PIPE SIZE AND MATERIAL IS IT?
It’s a 4.0" OD aluminized-steel tailpipe section designed to maintain flow and resist corrosion in daily-driven and work-truck environments.
FAQ: DOES IT INCLUDE HANGERS OR CLAMPS?
This listing is the tailpipe section only. Reuse your existing hangers/hardware or pair it with Diamond Eye clamps and adjoining tailpipe sections as needed.
Fitment Details
- Vehicle: 2001–2007.5 Chevrolet Silverado / GMC Sierra 2500 & 3500 HD, 6.6L Duramax
- Engine Codes: LB7, LLY, LBZ
- Position: Passenger side, first section tailpipe
- Main Pipe Diameter: 4.0"
- Body Style: Classic body (all cab & bed lengths)
Cross-Reference / Diamond Eye Alternatives
- Pair with the matching second section: DIAMOND EYE 321052 Second-Section Passenger-Side 4" Tailpipe
- Stainless upgrade for this section: DIAMOND EYE 361051 First-Section Passenger-Side 4" Tailpipe (T409)
Specifications
| Brand | Diamond Eye Performance |
|---|---|
| Part Number (MPN) | 321051 |
| Main Pipe Diameter | 4.0" |
| Section / Side | First section, Passenger side |
| Material | Aluminized steel |
| UPC | 841963115024 |
| GTIN | 0841963115024 (UPC-A) |
| Country of Origin | USA |
| Shipping Weight | ~13 lb |
| Package Dimensions | ~53" × 13" × 9" |
| Shipping Method | Standard ground |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
