hi mate my olde s2 was running 191.0 bhp
it had
standard pistons and rods with arp bolts uprated oil pump
felpro head gasket and arp head bolts standard head with matched inlet and exhurst ports
cvh34 cam standard pully stage 1 turbo running 18psi and an armed bayjoo chip
and a group a cosworth coil pro alloy front mount intercoole and rad with twin kenlo fans

and a set up ever now and again and the car never gave me a problem love thgat car should never of sold it

bhp up