craigfocus, sorry to hijack your thread mate, but im am after the same sort of advice.
i have a 5dr 52plate st 170, and i want abit more power, was thinking of the turbo route but thats just a complete fortune

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soooo, is it worth just putting a better exhaust system (full system inc manifold), enclosed induction kit and a remap?
suspension etc is already in mind

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cheers guys