uk 99 wagon,currently running 239 bhp and 281lb ft with sti 5 intercooler,ninja sports cat,magnex mid and h&s backbox with ecutek 3 remap,next to do is ik22 plugs (denso),performance leads,vf35,sti yellow 440s,uprated pump,and then a map tweek,any advice on what power and torque figures to expect would be good,and i have a stainless up pipe which i aint sure wether to fit it or flog it,would i gain anything as ive been told theres no point cause theres no cat in the standard one.advice would be a great help,cheers.: