ITEM NAME:3" Stainless Pipe To 2.5" 2 Flange Reducer Downpipe Exhaust Description: 3" Stainless Pipe to 2.5" 2 bolt Flange Reducer w/ o2 bung Downpipe Exhaust When somebody purchases a 3" downpipe with 3" exit flange we cut off this 2.5" section so we have many extra's left. It is 3" piping on the larger end and then it reduces to 2.5" with a 2.5" 2 bolt flange and has o2 bung for o2 sensor. The 2.5" piping and flange are all consistently the same length, but the 3" version of the piping is not consistently the same length of 3" piping, so if you buy more than 1 don't be surprised if one is longer than the other. Package Includes: 1 piece 3" Stainless Pipes to 2.5" 2 bolt Flange Reducer Note: *No installation Tool & No instruction is Included, Professional Installation is Recommended* Item exactly the same as piacture shown. Due to light and screen difference, the item's color may be slightly different from the pictures. Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm) THANK YOU FOR SHOPPING WITH US! Have a nice dayï ¼ ☠º SKU: DMO0012515552036073.3" Stainless Pipe to 2.5" 2 bolt Flange Reducer w/ o2 bung Downpipe Exhaust. 1 piece 3" Stainless Pipes to 2.5" 2 bolt Flange Reducer. It is 3" piping on the larger end and then it reduces to 2.5" with a 2.5" 2 bolt flange and has o2 bung for o2 sensor.