The fmic do look the dog's bits think i read somewhere the top mount is good for 400 ish maybe im wrong
If you just stuck on a fmic would you suffer from lag??
The Type25 (415 bhp) uses a standard sti topmount with no issues!
You would deffo get more lag with FMIC
If you itching to spend a few quid, then go for a 20g, exhaust, induction and remap, she'll br good for a nice responsive 370-380hp
Dan