Upgrade suggestions for Octavia Estate 1.8 Tsi Laurin & Klement

Just Upgraded my from my Old 2005 2.0 Ltr Skoda Octavia Elegance estate Diesel Tdi. To a newer 2010 Octavia Estate Laurin & Klement 1.8 Tsi. Looking for suggestions on what can possibly be upgraded on it & a rough idea of where to start. As far as i know, everything is factory standard on it & the guy in the garage said that it had the Audi TT engine in it. Can i ask what parts can be upgraded? Wheres a good place to start & what parts would you suggest to upgrade first.. contacted Celtic Chipping place & they said would cost around 250 to get it chipped or remapped... Other than that whats good to upgrade, turbo, wheels or any other parts.. looks pretty much brand new. So seems to be a good find & had a new engine fitted not long ago...