SKU# 12304Direct replacement Gasket & Bolt set for connecting the Centre section to Cat-pipe for Impreza Turbo 1993-2000 and 2001-2020 WRX and STI.Gasket sizeOverall diameter approx. 77mmInternal diameter 60mmDepth 16mm For more details or photos please don’t hesitate to contact us, email: [email protected] or phone: 01293 520090, or better yet why not come down and visit us at our site in Crawley, open weekdays 8:30am-5:30pm and Saturdays 9:00am-1:00pm.