A Thought Of Interest
If the same driver (same abilities, weight, etc.) drove a stock 997 around the Nurburgring (no traffic) and then took a 997 all stock but with aerokit (assuming he had not driven the stock 997 first) at the same start time as he would with the stock 997 (same track conditions, temp., tyres, etc.) - would the time difference be enormous or very marginal?