Pumaspeed Tapered Inlet Plenum - Focus RS 2009 Mk2 / ST225 - (Raw) Sandblasted effect. So why have Pumaspeed decided to enter the market and design a new unit?. More importantly it distributed the flow evenly to all 5 cylinders across the whole rev range of the 5 cylinder Volvo engine in the New Mk2 Focus RS and Focus ST 225.
