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The Diamond Eye 4-inch stainless catback MRP single w/ turn-down kit for 2004–2005 Chevy/GMC 6.6L LLY Duramax 2500/3500 replaces the factory catback section with a 4-inch stainless assembly and a single turn-down outlet. Diamond Eye’s manufacturing uses mandrel-bending and broad tube tooling to produce repeatable bends and fitment. The kit is listed to cover all cab and bed lengths for the specified LLY Duramax applications.
Diamond Eye KIT 4in Catback MRP Single w/ TDP SS 04-05 Chevy/GMC 6.6L Duramax 2500/3500
