a stock GTR is definitely gonna feel slower compared to a modded s15.
my mates s15 makes around 210rwkw and is really responsive compared to my gtr.
but while hes spinning in 3rd ill just drive away from him thanks to the awd.
having said that my gtr should be a lot quicker soon thanks to cams/-5s
also if you choose the 33gtr, go for a series 3