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The Diamond Eye 4-inch turbo-back exhaust kit for late-1990s–2002 Dodge Cummins 5.9L 2500/3500 applications replaces the factory pipe with single-wall stainless components to free up flow and simplify installation. Diamond Eye builds systems with mandrel bending and modern fabrication to maintain fit and performance. Constructed from 409 stainless and produced on CNC mandrel benders, the kit supports all cab and bed lengths and benefits from the manufacturer's R&D and testing focus, offering durable tubing, consistent bends, and reliable fitment for Cummins owners.
Diamond Eye KIT 4in Turbo Back MFLR RPLCMENT PIPE SGL SS: 98.5-02 DODGE CUMMINS 5.9L
