The Silverline DCK2 Converter Adapter Kit can be used to reinstall your stock 4" catalytic converter with an aftermarket 4" exhaust or it can also be used as a universal exhaust adapter. Includes (1) 4" I.D. - 4" I.D. x 6" L adapter and 2 clamps. Quantity of 2 may be required for front and rear cat connection. Features: T304 Stainless Steel Construction Can Be Used As Cat Re-installation Adapter Can Also Be Used As Exhaust Adapter Warranty: ANSA Exhaust Technologies warrants to the original retail purchaser that each Silverline exhaust component purchased from an authorized ANSA dealer shall be free from defects in material and workmanship for 1 Year, when used on private passenger cars and light trucks for personal use under normal operating conditions. The warranty commences on the date of the original purchase and is effective for the duration listed below, or for as long as the original purchaser owns the vehicle, whichever comes first.