17-23 Duramax L5P VVT Vane Nozzle Ring for Borg Warner Turbo Headlights The Evolution CTS3 reprograms your

The Evolution CTS3 reprograms your vehicles stock computer through the OBDII port of the vehicle

Gains of +21HP & +24 Ft-lbs

100 percent TIG welded

ARP also offers the Inner Row Head Bolts as an add-on to compliment this head stud kit (sold separately

Rust is the enemy of your coolant system

17-23 Duramax L5P VVT Vane Nozzle Ring for Borg Warner Turbo Headlights The Evolution CTS3 reprograms yourProduct Details Cross Reference:: 2512031 97192666 97358847 12640849 97192667 12640850 94399279 97216175 12631281 New replacement nozzle ring for 6. 6l L5P turbos. Made from high temperature resistant 310 stainless steel Replace sticky worn out nozzles to restore spool up and proper turbo operation Fits: 2017 2023 Chevy GMC 6. 6l Duramax L5P engines with Borg Warner Turbo. Cannot ship to California