Aye up Ace,
its the upgrade kit for your 05 999S Termi.
Your bike comes with the 'asymetric' half system, so this is the upgrade pipework that uses your Termi end can to upgrade to the full 57mm balanced race system and unlock that power!
You get the upgraded ecu, race air filters and pipework.
sexy as hell!!!
the 2005 perf catalogue is at...
http://www.motorapido.co.uk/clothing...ccessories.php