This transition pipe will turn your Krona down pipe kit into a full turbo back (if purchasing a cat back kit at a later time) or your Krona cat back kit into a full turbo back (if purchasing the down pipe kit at a later time).  If you already have one of our cat back or down pipe kits and want to upgrade this pipe is included at no extra cost  with the purchase of the Krona cat back or down pipe kit.