Product Description
DIAMOND EYE 124011 TURBO DOWNPIPE — 4" inlet/outlet aluminized steel downpipe for the 7.3L Power Stroke E-Series van. Eliminates the restrictive factory transition to improve exhaust flow, reduce EGT, and sharpen throttle response. Made in the USA.
Fitment
- Vehicle: 1998–2002 Ford E-Series Van (E-250/E-350) with 7.3L Power Stroke
- Configuration: Automatic transmission, non-catalyst models
- Pipe Size: 4.0" inlet / 4.0" outlet
- Material/Finish: Aluminized steel, Performance Series
Why Upgrade
- Mandrel-bent 4" tubing for lower backpressure and smoother turbo spool
- Durable aluminized steel construction for daily, towing, or fleet use
- Direct-fit layout engineered for E-Series 7.3L vans
What’s Included
- (1) Diamond Eye 124011 4" turbo downpipe (no O₂ bung)
- Installation-ready ends designed to mate with your second-section pipe
Cross-Reference / Pair With (Diamond Eye only)
- Second Section Tail Pipe (mates with this downpipe): DIAMOND EYE 124014
- Alternate listing on our site (same fitment/spec): DIAMOND EYE 124011 (Aluminized)
Helpful Notes
- Intended for non-catalyst E-Series van applications. Verify emissions equipment before ordering.
- Works best when paired with the matching Diamond Eye second-section pipe listed above.
Specifications
| Specifications for DIAMOND EYE 124011 | |
|---|---|
| Brand | Diamond Eye Performance |
| Part Number | 124011 |
| GTIN | Not specified |
| UPC | Not specified |
| Material | Aluminized Steel |
| Inlet / Outlet | 4.0" / 4.0" |
| O₂ Bung | No |
| Engine Compatibility | 7.3L Power Stroke Diesel (E-Series) |
| Transmission | Automatic |
| Emissions Note | Non-catalyst models |
| Country of Origin | USA |
| Shipping Method | Ground |
| Shipping Weight | Not specified |
| Package Dimensions | Not specified |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
FAQ
Will this fit my 1998–2002 E-350 7.3L van?Yes—this downpipe is designed for 1998–2002 E-Series vans with the 7.3L Power Stroke, automatic transmission, and non-catalyst configuration.
Does it include an oxygen sensor bung?
No. This part number is the “no O₂ bung” version and is intended for non-catalyst vans.
Is hardware or clamps included?
Clamps/hardware are typically re-used or sourced separately. See the related second-section pipe above for a matched connection.
Is this street legal?
Compliance varies by region and emissions configuration. Confirm local regulations and your vehicle’s emissions equipment before installation.
