hi i need more power out of my 1997 sti
so far i have (i think it is about 340bhp not as quick as mates evo5 360bhp)
rcm pistons
rcm oil pump
version 9 crank & rods only 1000 miles
equal headers. decat 2.3/4" exhaust
fmic
hks filter
simtec ecu (bob rawle)
full set of brembos.full rollcage.front & rear top/bottom strut brace's
vf 35 turbo 1,5 bar
thinking of going to a vf 48 .what power can you get out of a vf48 & will it bolt stright in. if not what will i have to do. thinking about the injectors at same time