The Exergy XRG 60% over injector set is a new direct-fit injector kit calibrated at 60% over stock flow for Duramax LLY 6.6L engines. Supplied as a set of eight for 2004.5–2005 Chevrolet Duramax 6.6L LLY applications, these injectors increase fueling capacity while retaining OEM-style installation. Ensure supporting fuel system upgrades and tuning when upgrading to higher flow injectors.
Exergy 04.5-05 Chevrolet Duramax 6.6L LLY New 60% Over Injector - Set of 8