These injectors are BRAND NEW Injectors top to bottom. Please don't confuse these with cheap Chinese knockoff these are built to last and come with an industry leading warranty. They are the most up-to-date version for the 6.6 Duramax. Every injector is NEW, all parts/components are NEW. This product is tested for compliance with OEM performance specifications and may be retested with NEO. These injectors have a one year warranty.
