Product Description
DIAMOND EYE K4308S is a 4.0" T409 stainless steel turbo-back exhaust for the 1994–1997.5 Ford F-250/F-350 7.3L Power Stroke (all cab/bed lengths). It includes a 3" two-piece downpipe and a single in / dual out layout with split rear/side exits plus a stainless muffler for a deep, controlled tone. Designed to flow and fit right, this system is built to handle heat cycles and work truck abuse.
- Material: T409 stainless steel tubing and stainless muffler
- System style: Turbo-back, 3" (2-piece) downpipe to 4" main
- Exit: Single in / dual out, split rear / split side
- Emissions note: System re-incorporates the factory catalytic converter where equipped (early builds); verify local laws before purchase.
Fitment Details
- Make/Model: Ford F-250 / F-350
- Engine: 7.3L Power Stroke (OBS)
- Years: 1994, 1995, 1996 & early 1997 (commonly listed as 1994–1997.5)
- Trans/Notes: Direct-fit turbo-back with 3" downpipe; uses OEM hangers.
Cross-Reference (MBRP-only links on cppdiesel.com)
Prefer an MBRP alternative? Compare similar single-side systems below (same truck):
- MBRP S6218409 — 4" Turbo-Back, Single Side Exit, T409 Stainless
- MBRP S6218AL — 4" Turbo-Back, Single Side Exit, Aluminized
- MBRP S6218P — 4" Turbo-Back, Single Side Exit, Aluminized (No Tip)
Specifications
| Brand | Diamond Eye Performance |
|---|---|
| MPN | K4308S |
| UPC | 841963106046 |
| GTIN | 0841963106046 (UPC-A) |
| System Layout | Turbo-back, 3" (2-piece) downpipe to 4" main, single in / dual out |
| Exit Configuration | Split rear / split side |
| Material | T409 stainless steel |
| Muffler | Included (stainless) |
| Shipping Info | Ships oversized ground; multiple cartons (system + tail sections). Check out-page for live rates. |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
FAQs
WILL THIS KIT FIT MY 1997?
Yes for early 1997 OBS trucks. Ford changed body/under-truck routing mid-1997; this kit is cataloged for 1994–1997.5 OBS. Verify your build date or contact us if unsure.
DOES IT INCLUDE THE DOWNPIPE?
Yes. The K4308S includes a 3" two-piece downpipe that transitions to 4" tubing.
IS THE MUFFLER STAINLESS?
Yes. Diamond Eye specifies stainless mufflers even in some aluminized series; this T409 stainless system includes a stainless muffler.
