Hennessey is already diligently at work on the Ford Focus RS, so far has it up to 405 hp image

The famous US tuner has wasted no time starting to work on the first ever Ford Focus RS generation to come to the United States, with power upgraded to 405 hp, for now.

But it appears the aftermarket specialist has even more upgrades on the way, aside from introducing the 2.3-liter EcoBoost to its HPE400 kit – which comes down with 405 horsepower (302 kilowatts) and 425 pound-feet (576.2 Newton-meters) of torque instead of 350 hp (261 kW) and 350 lb-ft (474.5 Nm) in the regular guise. The HPE400 has stainless steel mid-pipe with an electronic exhaust dump valve, a high-flow air filter and upgraded engine management software. It appears the kit will become available starting next month for $2,995 (parts only) or $4,995 for the components, plus installation and dyno tuning.

The Ford Focus RS can also wait a little longer though, as Hennessey promises more interesting things are coming soon. They are fiddling now with the intercooler, exhaust and turbocharger – but haven’t said a word about the timeframe. Anyways, if you’re in for the wait you might just focus on the RS500 – the rumor mill thinks this one will have 400 hp (298 kW) and also drop up to 220 pounds (100 kilograms) from the dry weight.