DIAMOND EYE K4212S-TD TURBO BACK EXHAUST 94–02 DODGE 5.9L UNDERBODY EXIT SINGLE TURN DOWN STAINLESS

DIAMOND EYE K4212S-TD is a 4.0" T409 stainless turbo-back exhaust with a single underbody turn-down exit for 1998.5–2002 Dodge/Ram 2500/3500 5.9L Cummins (all cab/bed). It’s engineered to drop EGTs, reduce backpressure, and deliver a deep, clean tone with stainless durability.

Fitment

• Vehicle: 1998.5–2002 Dodge/Ram 2500/3500, 5.9L 24-valve Cummins (VP44)
• Configuration: 4" turbo-back, single turn-down (underbody)
• Includes: 4" downpipe, intermediate pipes, muffler, turn-down tailpipe, clamps & hangers (see parts list below)

What’s Included (Core Components)

• Downpipe 261001
• Straight pipe(s) 420048
• Tailpipe section 261003 (turn-down)
• Clamps 454000, Hanger clamps 455036, 455017
• Stainless muffler (TD = with muffler)

Cross-Reference / Alternatives (MBRP-only)

• MBRP S6100409 — 4" Turbo-Back, Single Side Exit, Armor Plus T409 (1998–2002 5.9L)
• MBRP S6100304 — 4" Turbo-Back, Single Side Exit, Armor Pro T304 Stainless
• MBRP S6100PLM — 4" Turbo-Back, Single Side Exit, No Muffler (Armor Lite Aluminized)

FAQs

WILL THIS FIT MY 1998 OR 2002?

Yes, it fits 1998.5–2002 24-valve trucks (VP44). Early 1998 12-valve models use different fitment.

DOES THE TD VERSION INCLUDE A MUFFLER?

Yes. The TD suffix denotes a turn-down system with a muffler. If you want no muffler, see Diamond Eye TDRP or MBRP PLM options.

IS IT LEGAL IN CALIFORNIA?

Many turbo-back systems are not CARB-legal for on-road use. Check your local/state regulations before purchase.

Specifications

Install Notes

Dry-fit the complete system before final tightening. Re-use the OE turbo elbow bolts. Align for axle/suspension clearance, then torque clamps evenly. Always verify hanger orientation and tailpipe position.