Kooks 02-05 Cadillac Escalade Base /Chevrolet Silverado 1-7/8 x 3 Header & Catted Y-Pipe KitKooks 02 05 Cadillac Escalade Base Chevrolet Silverado 1 7 8 x 3 Header & Catted Y Pipe Kit Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street, race and off road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and