upgrading the turbo

my car wasn't in a good performance for such a long period of time since the existing plugged in td04 is kantoi. it took me about a half year, wow its 6 months huh to get a bigger turbo to replace the old one. there are 2 options; either you upgrade (rm1200+workmanship around rm200) or get the stock turbo with lower price (rm800). i prefer to upgrade since lots of advice of "alang-alang" hehehe...welcome to the bay, td05!