Product Description
DIAMOND EYE K4234S-RP is a 4.0" T409 stainless cat-back exhaust for 2004.5–2007.5 Ram 2500/3500 5.9L Cummins. This straight-pipe (no muffler) system reduces backpressure, sharpens turbo response, and delivers a clean, authoritative exhaust note. Mandrel bends and OE-style hangers ensure a precise, bolt-on fit.
Fitment
- Vehicle: 2004.5–2007.5 Dodge Ram 2500/3500, 5.9L Cummins (all cabs/beds)
- Configuration: Cat-back, single passenger-side exit, no muffler
- Tubing: 4.0" T409 stainless steel
Cross-Reference / Alternatives (MBRP-only)
- MBRP S6108409 — 4" Cat-Back, Single Side Exit, T409 Stainless (with muffler)
- MBRP S6108AL — 4" Cat-Back, Single Side Exit, Aluminized (with muffler)
- MBRP S61180PLM — 5" Cat-Back, Single Side Exit, No Muffler (aluminized)
FAQ: WILL THIS BOLT UP TO MY TRUCK?
Yes — it’s designed for 2004.5–2007.5 5.9L Cummins Ram 2500/3500 and uses factory-style hangers. Always confirm model year split (2004.5+) and cab/bed.
FAQ: DOES IT INCLUDE A MUFFLER?
No. This is the RP (muffler replacement / straight-pipe) variant for maximum flow and sound.
FAQ: IS IT LEGAL IN MY STATE?
Emissions rules vary by state/locale. This is a post-catalyst cat-back kit with no muffler; verify local regulations before purchase.
Specifications
| Brand | Diamond Eye Performance |
|---|---|
| MPN | K4234S-RP |
| UPC | 841963104318 |
| GTIN | 0841963104318 (UPC-A) |
| Material | T409 Stainless Steel |
| Tubing Size | 4.0" |
| System Type | Cat-Back, Single Passenger-Side Exit, No Muffler |
| Tip | Not included |
| Fitment Notes | 2004.5–2007.5 Ram 2500/3500 5.9L Cummins; all cabs/beds |
| Country of Origin | USA |
| Shipping Weight | ~52 lb (typical) |
| Package Dimensions | ~52" L × 21" H × 13" W (typical) |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
Note: Hardware/content may vary by production run. Always follow the included instructions.
