Just bin to town and some guy I know (use to goto school with) called billy...billy bullsh*t...says "my rsturbo (rsturbo shell with an XR3i motor in) is 480bhp your RS turbo (roughly 170bhp) has no chance, so I agree nodding accordingly.....so there u have it the most bhp from an XR3i is 480bhp...beware! some ppl r so full of shit,god this guy's a loser lol