The MK3 Ford Focus RS is a great platform for soaking up highway miles during the weekday and tearing it up at the track on the weekend! With some minor modifications, the 2.3L Turbo engine can produce some outstanding power. In stock form, the stock tube-and-fin intercooler is barely sufficient at cooling the incoming charged air. When you start adding power using a tune and/or bolt-on parts, you'll soon find that you're well beyond the limits of the stock charge air system which is notoriously prone to heat soak. Thankfully Injen Technology has developed a highly efficient bar-and-plate intercooler engineered specifically to fit the Ford Focus RS MK3 platform.