Product Description
Overview
Unlock smoother exhaust flow and lower EGTs on your 7.3L Power Stroke with the DIAMOND EYE 120015 4" aluminized turbo downpipe. Mandrel bends and a true 4" diameter help reduce backpressure, improve spool, and sharpen throttle response—all in a durable, value-packed Performance Series design.
Key Features
- 4" aluminized steel, mandrel-bent for maximum flow
- Direct-fit for automatic-transmission, non-catalyst models
- Improves turbo spool, throttle response, and potential fuel economy
- CARB Exempt: Executive Order D-778-1 (street legal in California)
- Free shipping from CPP Diesel
Fitment
- 2000–early 2003 Ford F-250 / F-350 / F-450 / F-550 – 7.3L Power Stroke
- Transmission: Automatic only
- Emissions note: For non-catalyst models
What’s Included
- (1) 4" aluminized downpipe assembly
Cross-Reference / Alternatives (Diamond Eye only)
- DIAMOND EYE 165030 – 03–07 6.0L F-250/F-350 first-section 3.5" stainless downpipe
- DIAMOND EYE 124011 – 98–02 E-Series Van 7.3L 4" downpipe
- More Diamond Eye Power Stroke downpipes (category view)
Helpful Notes
- Early-2003 cutoff: verify build date; late-’03 trucks are 6.0L and use different parts.
- Reusing clamps/gaskets? Inspect and replace if worn for best seal.
Specifications
| Specifications for DIAMOND EYE 120015 | |
|---|---|
| Brand | Diamond Eye Performance |
| Part Number | 120015 (SKU: DEM120015) |
| UPC | 841963120332 |
| GTIN | 00841963120332 |
| Material | Aluminized steel |
| Diameter | 4.0 in |
| Engine Compatibility | Ford 7.3L Power Stroke (2000–early 2003) |
| Vehicle Compatibility | F-250 / F-350 / F-450 / F-550 (automatic, non-catalyst) |
| CARB Status | Exempt (EO D-778-1) |
| Country of Origin | Not specified |
| Shipping | Free Shipping (CPP Diesel) |
| Package Dimensions | 53.00 in × 13.00 in × 9.00 in |
| Shipping Weight | 15lbs |
| Prop 65 | This product can expose you to chemicals including Nickel, known to the State of California to cause cancer. Learn more. |
No. This part is specified for automatic-transmission, non-catalyst models only.
Is it street legal in California?Yes. It is CARB exempt under Executive Order D-778-1 (confirm your vehicle falls within the covered years/models).
What material is it made from?Aluminized steel (Performance Series).
What size is the tubing?True 4.0" diameter.
Do I need new clamps or gaskets?Inspect existing hardware; replace any worn components for best results.
