Product Description
DIAMOND EYE K4212A-TD is a 4.0" aluminized turbo-back exhaust with a single turn-down exit and included muffler for 2nd-Gen Dodge Ram 2500/3500 5.9L Cummins. Mandrel-bent tubing lowers backpressure and EGTs while delivering a deep, controlled tone. Direct-fit routing uses factory-style hangers for a clean install.
FAQ: WILL THIS FIT MY YEAR?
This kit is designed for 1998.5–2002 24-valve 5.9L Cummins (all cab/bed). Some retailers list 1994–2002 coverage, but the downpipe uses the 98.5–02 two-bolt turbo flange. If you have a 1994–1998 12-valve, verify turbo outlet style before ordering.
FAQ: DOES IT INCLUDE A MUFFLER?
Yes—K4212A-TD includes a performance muffler. If you want a no-muffler variant, see Diamond Eye K4212A-RP or MBRP delete options in the cross-reference below.
FAQ: WHAT SOUND/TONE SHOULD I EXPECT?
A deeper, mellow tone under load with minimal drone in cruise compared to straight-pipe kits.
Fitment Details
- Vehicle: 1998.5–2002 Dodge Ram 2500/3500, 5.9L Cummins, all cab & bed lengths
- System Type: 4" turbo-back, single turn-down exit, includes muffler
- Notes: Uses 98.5–02 two-bolt turbo downpipe connection; confirm turbo/downpipe interface if adapting to 1994–1998 trucks
Cross-Reference / Alternatives (MBRP-only)
- MBRP S6100AL — 4" turbo-back, Armor Lite (aluminized), single side
- MBRP S6100P — 4" turbo-back, Armor Lite (aluminized), single side
- MBRP S6100409 — 4" turbo-back, Armor Plus (T409 stainless)
- MBRP S6100PLM — 4" turbo-back, aluminized, no muffler
- MBRP S6100SLM — 4" turbo-back, T409 stainless, no muffler
Specifications
| Brand | Diamond Eye Performance |
|---|---|
| MPN | K4212A-TD |
| UPC | 841963103298 (base K4212A family; TD variant UPC not published—verify before labeling) |
| GTIN | 0841963103298 (UPC-A) |
| Material | Aluminized steel, mandrel-bent |
| Configuration | 4" turbo-back, single turn-down exit, includes muffler |
| Vehicle Fit | 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins (all cab/bed) |
| Shipping Weight | ~80 lb |
| Package Dimensions | Approx. 52" L x 13" W x 21" H (boxed kit) |
| Prop 65 | WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov |
Helpful Notes
- For a traditional side exit instead of turn-down, see Diamond Eye K4212A (side outlet) or the MBRP alternatives above.
- No tuning required. Expect lower EGTs and a deeper exhaust note vs. stock.
