Bigger servo?

can any1 help? have just fitted "Hi-spec" brake conversion 2 the front ov my 1.6 cab, and need 2 know if a GTI sevo is bigger/stronger? which 1 do i need? will a mk2 servo fit? i think that with a bigger/stronger servo i will have better results from the big brake kit, thanks.

Mk2 servo will need a mk2 master cylinder , both of which on the 16v and late 8vs are bigger than yours.