The folks over at Prodrive have been busy putting their Group N and Rally experience to good use and have cobbled together a couple of go-faster kits for the new Subaru Impreza WRX and WRX STi.
While details regarding the tamer WRX kit are not yet known the STi upgrade will boost power to a handy 295kW/395hp and comes complete with an improved braking package to ensure you can still tame the beast.
Costing ???4,500, the STi kit is not cheap. Unfortunately, the kit is only available in the UK, where it will be a dealer fitted option. The upshot of that for UK based performance enthusiasts is a go-fast kit that does not void the Subaru factory warranty.