DIAMOND EYE K4212A-TDRP TURBO BACK EXHAUST SYSTEM FOR 94–02 DODGE 5.9 LITER MUFFLER REPLACEMENT PIPE UNDERBODY EXIT SINGLE TURN DOWN ALUMINIZED

DIAMOND EYE K4212A-TDRP is a 4.0" aluminized steel turbo-back exhaust for the 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins (all cab/bed lengths). This configuration uses a muffler replacement pipe (no muffler) with an underbody single turn-down exit to cut weight and backpressure while keeping install time short.

FAQ: WILL THIS FIT MY TRUCK?

Yes, if you have a 1998.5, 1999, 2000, 2001, or 2002 Ram 2500/3500 with the 5.9L 24-valve Cummins (VP44). It’s designed for all cab/bed lengths. Always verify model year (’98.5+ split) before ordering.

FAQ: DOES THIS KIT INCLUDE A MUFFLER?

No. This is the TDRP configuration (Turn Down + Replacement Pipe)—it replaces the muffler with a straight section for maximum flow and a more aggressive tone.

FAQ: IS IT CALIFORNIA (C.A.R.B.) LEGAL?

No. This turbo-back, muffler-delete configuration is not for sale or use on pollution-controlled vehicles in California or other CARB states.

Fitment Details

• Years/Models: 1998.5–2002 Ram 2500/3500 5.9L Cummins (24V, VP44), all cab/bed lengths
• System Diameter: 4.0" aluminized steel
• Exit: Underbody, single turn-down
• Configuration: Turbo-back with muffler replacement pipe (no muffler)

Cross-Reference / Alternatives (MBRP-Only)

• MBRP S6100PLM — 4" turbo-back, single side, no muffler (Armor Lite)
• MBRP S6100AL — 4" turbo-back, single side (Armor Lite)
• MBRP S6100409 — 4" turbo-back, single side (Armor Plus T409)
• MBRP DALHX40 — 4" HX40 downpipe & clamp (pairs with many 2nd-Gen turbo-backs)

Specifications

Install Tip: For HX40-outlet turbo swaps, confirm your downpipe interface. Pairing with a proper 4" HX40 downpipe (see MBRP DALHX40 above) ensures a leak-free connection.