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The Diamond Eye 4-inch aluminized turbo-back exhaust kit for 1989–1993 Dodge 5.9L Cummins 2500/3500 (4‑wheel drive) provides a direct-fit system from the turbo back across all cab and bed lengths. Manufactured with CNC mandrel bending and precision fabrication, the kit uses aluminized mandrel-bent tubing and Diamond Eye's production resources to offer consistent fitment, durable bends, and reliable availability.
Diamond Eye KIT 4in Turbo Back SGL AL: 4-WHEEL DRIVE ONLY 89-93 DODGE CUMMINS 5.9L
