Looks like an interesting project
Power wise though if you're running a gt28 setup on an FRS engine you should be easily able to get a reliable 330bhp odd if you wanted
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Owner of a mad Focus RS
416bhp @ the fly / 354.5bhp @ the wheels / 434 lbft torque / 32 psi
Autronic SM4 ecu / SCC spec GT28 roller bearing hybrid turbo
Lots of custom Ian Howell bits, head & cams & custom inlet manifold

Plus loads and loads of carbon fibre too
www.sccperformance.com /
www.area-six.co.uk