Roger Clark Motorsport Group N Baffled Oil Sump PanThe increasing popularity of track days and other such events coupled with the search for ever higher bhp figures has highlighted some alarming shortfalls in the standard sump fitted to the Impreza from the factory. As most are aware the sump pan carries out a vital role in any engine collecting and storing the engine oil before being distributed around the engine lubricating and cooling as it goes. Shortfalls in the standard sump arise when the cars