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Diamond Eye 4-inch stainless turbo-back exhaust kit for 1989–1993 Dodge 5.9L Cummins 2500/3500, configured as a single-outlet turbo-back with HX40 downpipe. Built with 4" stainless tubing, this kit replaces the turbine-to-tailpipe system and includes the HX40-compatible downpipe option noted in the part description for owners running that turbo configuration.
Diamond Eye KIT 4in Turbo Back Single SS DDG2X4-HX40 89-93 Dodge 5.9L Cummins 2500/3500
