i find the the forge unit a great job, granted the seat sport one may be bigger and because of this probably better, but for value for money and ease of fitment the forge unit is hard to beat, and when upgrading from the stock smic the forge unit is excellent. my motor is remapped and rolling roaded at 182bhp and the forge is playing a blinder, my motor runs sweet as and even on a hot day theres no sign of heatsoak and the wee beeza holds full power with ease. i would actually stick my neck out and say that if your upgrading from the smic and maybe just running a remap, the forge is more than enough, theres no need for the seat sport one.