For transformula,.你需要很多spare螺絲，仲需要買Team associate 12R5.1 嘅4袋parts
如果你係upgrade舊F103會容易D, 不過KWS都應該可以買齊你要嘅 Parts
Exotek 唔知吃粥重有冇
Both transformula and exotek can be purchased online (HK site & US site respectively)
Both have excellent quality
Both highly recommended
