there r injen intakes, turbo chargers, headers (saw it b4, tryin to find it), tom's computer (r there any?? dunno)... as well............... if there aint much of power improvement, y not think about helpin ur car to lose weight???? decrease the power-weight ratio, <--faster
there r cf hoods, use coilovers ( i think it will help lose some weight), take the ABS away, take the spare tire out, the jack, n the A/C is u want.........they will lose about 100~200lbs........change the bushings, n sway bars, then tower bars.........i think ur car is pretty much set to go........ n if u know the air-to-fuel ratio, u can SAFC-II to find the best af ratio for ur car.........
also, i heard that u can put the supra injectors for the 5s-fe, is this true??? any1 can confirm it??