Stainless Works 1992-96 Corvette LT1/LT4 1 5/8" Primaries with 3" lead pipes- no cats- off road use only. Long tube design makes great mid range and top end power, CNC laser cut 3/8" stainless flanges, CNC mandrel bent 304 SS primary tubes. Includes Leads But Will Require Fabrication To Fit To An Exhaust.