Racing Dynamics Twin Tailpipe Tip for Porsche Boxster, Boxster S / Cayman, Cayman S (90mm)Twin tailpipe tip for Porsche Boxster and Cayman S (987) 2005 2012. Gives your Porsche Boxster or Cayman a new look with new dual 90 mm exit diameter chrome tips. Features: Sold as one, similar to OEM Porsche Factory 987. 111. 254. 02 retailing for $475. Our tailpipe tip comes with a base inlet diameter of 70mm, and a set of 3 reducings rings to allow mounting on exhaust pipes of 70mm, 68mm, 65mm, 59mm and sizes in between. Polished T304 stainless