COBB Tuning's replacement hardware kit for your Cat-Back Exhaust. This kit features all the hardware you'll need on the cat-back system including: 2 - 7/16" 2-Bolt Exhaust Gaskets 1 - 3" Thin 2-Bolt Exhaust Gasket 6 - Zinc Plated Hex Bolts - 10x1.25 thread pitch, 35mm long threads 6 - 6 10 x 1.25mm nuts