The Kooks long-tube header and catted connection pipe system for 2016 and later Cadillac CTS-V with the LT4 6.2L improves exhaust flow with 2" primary tubes stepped to 3" connection pieces and Green-catted stainless connection pipes. These T304 stainless components require cutting the stock exhaust for installation and are handcrafted in the USA to Kooks' race-proven standards.
Kooks 2016+ Cadillac CTS-V LT4 6.2L 2in x 3in SS LT Headers w/ Green Catted SS Connection Pipes