Bakbak and Wyepipe for Sierra and Silverado models 19-25 The kit is from Max Power, used for a year and a half, Corsa cut, original outlet The Wyepipe is from X Super, used for only 4 months, American Racing cut It has never been boosted and has no leaks, with its devices and remotes, and stored in a closed warehouse For sale to the highest bidder, contact via private message. May God reward you.