It used to be the type of power only found on Formula One grids, or in £250k supercars, but now for less than £15k, Audi TT RS owners can unleash just shy of 600bhp from their cars, thanks to APR's comprehensive and somewhat rule-bending Stage 3 turbo system. Daily drivers will never be the same again.

This sneak peak 'behind the scenes' was shot at Bruntingthorpe Airfield and Proving Ground and featured in the November 2013 issue of PVW Magazine.

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