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Right through but especially mid range and above. The rs2/sm do give you nice flat torque but obviously a lot less.
Ha e got a graph at home of the last one I did, will post it later on when I'm back in.
If you want something with torque then go for matched inlets and 197 cams, will give you more torque than the rs2.
Last two I've done have made 193 and 197 bhp, the latter did 175ft/lb torque.
You can set 197 cams on standard timing if you want, not the best results that way but seen 190bhp...
i'd be tempted to get the injectors flow tested, always nice if you can find out what's killed it. presume the injectors have a filter in them? was this replaced and were the flow tested or where they just cleaned?