Description
EMISSIONS NOTICE: This part does not have a California Air Resources Board (CARB) Executive Order (EO) number. NOT LEGAL FOR SALE OR USE IN CALIFORNIA OR CARB-adopting states. The cat-back section installs downstream of the factory catalytic converter / DPF and does not remove or modify emissions equipment. The included 321056 turbo downpipe replaces the factory downpipe ahead of the emissions equipment and is covered on its own by CARB E.O. # D-778; the complete kit is not. Does not support the removal of emissions equipment.
The Diamond Eye Performance K4120S is a 4" T409 stainless steel cat-back exhaust with turbo downpipe for the 2004-2006 Chevy/GMC 2500/3500 with the 6.6L LLY Duramax.
Features
- 4" T409 stainless steel
- Cat-back system: replaces the exhaust from the catalytic converter back
- Single side exit
- Muffler: Diamond Eye does not list a muffler for this kit - contact us to confirm
- Exhaust tip: not included
- Made in the USA
Fitment
- 2004-2006 Chevy/GMC 2500/3500 6.6L LLY Duramax
- All cab and bed lengths
- Fitment as stated by Diamond Eye: 2004-2006 Chevy/GMC 2500/3500 6.6L LLY Duramax (Diamond Eye's text reads "2004 & 2006"). The LLY was used in 2004.5-2006 trucks - confirm your engine with us before ordering.
- Ducky platforms: LLY
What's Included
- Diamond Eye K4120S cat-back exhaust with turbo downpipe as supplied by Diamond Eye Performance
- Diamond Eye 321056 turbo downpipe (covered on its own by CARB E.O. # D-778)
Details
- Manufacturer: Diamond Eye Performance
- Diamond Eye part number: K4120S
- Material: T409 stainless steel
- Tubing size: 4"
- UPC: 841963121445
Questions about fitment? Call or email the Ducky Fuel Injection team before you order, and we'll confirm the right part for your truck. Call us at 479-799-3953.
