Product Description
DIAMOND EYE K4340A is a 4" dual-exit (split rear/side) cat-back exhaust system for the 2003.5–2007 Ford F-250/F-350 Super Duty 6.0L Power Stroke (4x4 only). Mandrel-bent aluminized steel tubing and a free-flow Diamond Eye muffler reduce backpressure, help lower EGTs, and add a deep, authoritative tone. Tip not included.
FAQ: WILL THIS FIT MY TRUCK?
Yes—if you have a 2003.5–2007 Ford F-250 or F-350 6.0L Power Stroke 4x4, all cabs and bed lengths. (Not for 4x2.) Always confirm your model year and drivetrain before ordering.
FAQ: WHAT’S INCLUDED?
4" mandrel-bent pipes, hangers, clamps, and a Diamond Eye muffler. Exhaust tips are not included so you can choose your preferred style.
FAQ: MATERIAL & SOUND
This system uses aluminized steel for value and durability. The perforated-core muffler delivers a smooth, deep tone without excessive drone.
Fitment Details
- Vehicle: 2003.5–2007 Ford F-250/F-350 Super Duty 6.0L Power Stroke
- Drivetrain: 4x4 only
- Cab/Bed: All cab and bed lengths
- Configuration: Dual split rear/side exits, cat-back
Cross Reference & Related Items
- K4340A-RP — same kit without muffler (muffler-delete)
- K4340S — stainless-steel version with muffler
- K4338A — 4" single-exit (aluminized) for the same platform
Specifications
| Brand | Diamond Eye Performance |
|---|---|
| MPN | K4340A |
| UPC | 841963107821 |
| GTIN | 0841963107821 (UPC-A) |
| System Type | 4" Cat-Back, Dual Split Rear/Side |
| Material | Aluminized Steel |
| Includes Muffler | Yes (Diamond Eye perforated-core) |
| Tip Included | No |
| Vehicle Fit | 2003.5–2007 Ford F-250/F-350 6.0L Power Stroke, 4x4 only; all cabs/beds |
| Shipping Weight | 83 lb |
| Shipping Dimensions | 52" L x 13" W x 21" H |
| Warranty | 1-Year (manufacturer defect) |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
Notes: Designed for 4x4 models only. Some kits omit factory resonator. Professional installation recommended.
