So what does the M400 kit add?
In exchange for the Â£3495 price tag, the kit equips:
â€¢ High-flow induction kit
â€¢ Uprated turbo recirculation valve
â€¢ Sound Suppression Chamber (to cancel out unwanted whistle noises from the upgraded turbo)
â€¢ High-flow hard pipe
â€¢ High-performance alloy intercooler
â€¢ 3â€ downpipe with 200-cell sports catalyst
â€¢ 3â€ V3 cat-back exhaust
â€¢ mTune handset with 400 calibration (allows you to tweak exhaust noise, activate 'Dyno Mode' etc.)
â€¢ Two Mountune badges
In short, all of these uprated performance parts add 49bhp and 92lb ft of torque. You have to bear in mind, though, that the M400 kit isnâ€™t endorsed by Ford (unlike the FP375 kit we tested earlier in 2017), so it could void your warranty.
Read more on Car Magazine.