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The Diamond Eye turbo-back exhaust kit is a 4-inch turbo-back assembly listed with HX40 turbine compatibility for 1994–2002 Cummins 5.9L applications. The catalog notes aluminum construction and identifies this as a custom kit with no warranty on fitment. It’s presented as a vehicle-specific turbo-back solution; confirm exact compatibility and installation requirements before buying.
Diamond Eye KIT 4in TB HX40 DWNP 221040 SGL AL 94-02 CUMMINS 5 9L NO WARRANTY ON FITTMENT-CSTM KIT
