Product Description
DIAMOND EYE 510209 is a 4.0" I.D. x 4.0" I.D. straight-through T409 stainless muffler replacement (muffler delete) pipe with a 27" overall length. It’s built to reduce backpressure, sharpen throttle response, and deliver a louder, performance-forward exhaust note on 4" diesel systems.
FAQ: WILL THIS BOLT INTO MY TRUCK?
This is a universal 4" I.D.-to-I.D. section designed to replace a 27" muffler in most 4" diesel exhaust systems. Measure your existing system (tube size, overall length, and hanger locations) before ordering.
FAQ: STAINLESS OR ALUMINIZED?
510209 is T409 stainless steel for corrosion resistance and long service life. If you prefer a budget aluminized option, see the cross-references below.
FAQ: ANY TUNING OR EMISSIONS NOTES?
This part replaces a muffler in an already free-flowing exhaust. It does not include catalytic/DPF components. Always follow local laws when modifying exhaust systems.
Fitment Details
- Type: Universal 4" diesel systems (straight muffler replacement)
- Connection: 4.0" I.D. inlet x 4.0" I.D. outlet
- Overall Length: 27" (commonly replaces 27" body mufflers)
- Material: T409 stainless steel
Cross-Reference / Alternatives (Diamond Eye only)
- DIAMOND EYE 510204 — 27" aluminized 4" I.D./I.D. delete
- DIAMOND EYE 510205 — 30" aluminized 4" I.D./I.D. delete
- DIAMOND EYE 510210 — 30" stainless 4" I.D./I.D. delete
Specifications
| Brand | Diamond Eye Performance |
|---|---|
| MPN | 510209 |
| Material | T409 Stainless Steel |
| Size | 4.0" I.D. inlet / 4.0" I.D. outlet |
| Overall Length | 27" |
| UPC (primary) | 841963117677 |
| GTIN | 0841963117677 (GTIN-12 / UPC-A) |
| Shipping Weight | ~7 lb |
| Package Dimensions | 9" x 9" x 37" |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
