2007 - 14 Chevy Tahoe and Yukon LT 1 - 34 primary tubes with 2 - 12 collectors. Stainless steel construction, TIG welded and made in the USA. Includes clamps, O2 extensions and catted lead pipes to fit Stainless Works' true dual exhaust. Fits 4.8, 5.3, 6.2L motors.