Rather than simply turning the ST's 2.0-liter turbocharged inline-four up to 11, Ford's European performance division – Team RS – will likely use a larger-displacement mill for development of the hotter-than-hot Focus. The most likely candidate is a new 2.3-liter EcoBoost engine – rumored to be shared with the 2015 Mustang – that will produce around 350 horsepower.
Ford will likely offer the Focus RS with a six-speed manual transmission, but engineers have not ruled out the possibility of using a version of the company's PowerShift dual-clutch 'box. The main concern from Team RS is that using a DCT will add weight, though the engineers understand that the trend in this segment is to use dual-clutch gearboxes.
It's unclear whether or not the Focus RS will come to the US, despite the company's One Ford global product strategy. When it launches in Europe, Auto Express expects the RS to retail for about 25,000 pounds – just shy of $40,000 based on current exchange rates.
From AutoBlog.Com
http://www.autoblog.com/2012/11/07/ford-focus-rs-could-get-350-hp-ecoboost-e-diff/