Skip advert
Advertisement

Hennessey Performance planning 400bhp Ford Focus RS

Even more power for Ford's super-hatch

Hennessey Performance, they of 270mph Venom GT fame, is turning its attentions to the ever so slightly more humble Focus RS. Called the HPE400, the four-wheel drive hot Ford will have a claimed 400bhp and 425lb ft of torque when the upgrade kit is available later this year. 

The performance kit will consist of an engine ECU remap, a high-flow air filter and a stainless steel mid-pipe upgrade with an electronic dump valve. There will also be a smattering of Hennessey badges stuck here, there and seemingly everywhere. 

Advertisement - Article continues below

>Read our Ford Focus RS review

With the gen-three Focus RS being the first iteration to be sold in North America the number of aftermarket tuning options are coming thick and fast for the four-wheel drive hot hatch. 

Hennessey Performance’s upgrades will result in a 60bhp power and a 78lb ft increase in torque over the standard car’s 345bhp produced at 6000rpm and 347lb ft produced from 2000 through to 4500rpm. Hennessey has yet to confirm engine speeds for its performance increases. 

The Henneessey conversion will match Ford specialist Mountune’s Focus RS tuning upgrades, which has resulted in its Phase 3 conversion delivering 375bhp and 391lb ft of torque with a claimed 0-60mph time of 4.4seconds. Hennessey will be hoping to improve on the performance figures achieved by Mountune when it gets its car on a drag strip. 

Mountune’s Phase 3 kit is very similar to the one Hennessey will provide with a reprogrammed ECU, freer breathing air induction kit, revised air ducting, silicone hoses and a upgraded air re-circulation valve.  Mountune charge £1050 for its Phase 3 upgrade, or you could opt for the Ford-approved upgrade (also developed and carried out by Mountune), which costs £899 and retains the manufacturer’s warranty in return for 370bhp and 376lb ft and a 4.5-second 0-60mph time. 

Along with its tuning packages, Mountune also offers a number of other tuning options, including an ally intercooler upgrade, a set of OZ wheels and tyres and a Quaife differential. With the popularity of the Focus RS and the enthusiasm for aftermarket tuning that has always surrounded fast Fords expect many more tuning houses to join both Hennessey and Mountune in offering performance upgrades for Ford’s hottest every hatchback. 

Skip advert
Advertisement
Skip advert
Advertisement

Most Popular

Used car deals of the week: a Ferrari F12 for supersaloon money
F12 Used car deals
News

Used car deals of the week: a Ferrari F12 for supersaloon money

We dive into the classifieds this week to find the very best performance cars for the least amount of money, including a cut-price V12 Ferrari
13 Feb 2026
2027 Range Rover spied – Land Rover’s luxury icon sharpens up
Range Rover prototype
News

2027 Range Rover spied – Land Rover’s luxury icon sharpens up

The fifth-generation Range Rover is due a mid-life facelift soon. We’ve spied it
12 Feb 2026
Abarth 695 (2012-2024) review – why we’ll miss Italy’s Mini Cooper S rival
Abarth 695 – front
Reviews

Abarth 695 (2012-2024) review – why we’ll miss Italy’s Mini Cooper S rival

The Abarth 695 (and all Abarth 500s in fact) have a sense of humour the hot hatch segment will sorely miss
13 Feb 2026