well for myvi u can try search myviclub.com.my...they have done various mod and few mods that i suggest
1)exhaust system-depends on ur setup for the price..
2)CAI-RM35 and DIY
3)voltage stabilizer-Pivot RM150-160
4)airfilter drop in-RM100++
5)plugs-RM160-170..
basically thats all..i have done a few and the power is there..tested with a myvi on highway and he could not chase me..tested with my own fren..he din on AC I on AC..he is manual and i drive auto..
SE86
which shop u done ur ezkos? recomand me...