(yeah, that's the S204 in the background)
We can't say this enough times: This isn't just a short-shift kit. What it does is to replace all the soft, squishy bits in the S204's original linkage with hard-points so there's less flex and give, which returns fantastic feel, precision and weighting during shifting that is more mechanical than the original's slightly-rubbery.
(original S204's shift linkage is on top, the GpN part is below)
(left is the GpN part, right is original)
As far as upgrades go, and coupled to the relatively low JPY versus the SGD when we ordered it, this is possibly the best S$500 I've ever spent. There's slightly more vibration and you feel everything a lot more, but then we're not buying these cars to drive slowly and quietly so that wasn't a huge deal-breaker for me.
Trust me when I say this 'simple' mod will make you want to drive your car so much more. Of course, it's not just applicable to the S204; I'd reckon it's the same kit for the 'hawkeye' 'pig-nose' generation of STIs with the 6spd manual transmission, but naturally, check with your respective garages/workshops/tuners to be safe.