The Focus ST and RS have built one of the strongest hot-hatch followings in the UK, and a lot of that comes down to how well the factory styling holds up — a splitter and spoiler that genuinely look like they belong on the car, rather than an obvious aftermarket bolt-on. Our Focus range is built specifically around those factory lines across the MK3, MK3.5 and MK4 generations.
Why Upgrade Your Focus?
The main draw here is sharpening a look that's already good: a front splitter lowers and widens the car's visual stance without touching the suspension, while a rear spoiler finishes off the boot line in a way that reads as factory-correct rather than an add-on. For ST Line and non-ST cars, our spoiler also gives you the ST look without buying the full ST specification.
Front Splitter: MK3.5 ST (2015-2018)
A 3-piece front splitter built specifically for the ST bumper on the MK3.5 (2015-2018). Because it's ST-specific, please check your bumper against our fitment photos — this won't fit standard Focus bumpers.
Front Splitter: MK4 ST & ST Line (2019+)
The same 3-piece design updated for the MK4's ST and ST Line bumper shape (2019 onwards), in gloss black ABS.
Front Splitter: RS MK3/3.5 (2015-2018)
A dedicated splitter for the RS-specific front bumper, which is a different shape again from the ST — please check your bumper matches our fitment photos before ordering.
Rear Spoiler: MK3/MK3.5 (2012-2018)
Our ST-style spoiler is designed to sit on top of an existing ST or ST Line lip; if you have a standard, non-ST Focus, you'd fit this ST-style base first before adding our RS-look lip spoiler on top. Brake light LED is not included, so your existing brake light is reused.
Fitting Notes
Splitters are supplied with 3M tape for initial positioning, with a strong adhesive such as Tiger Seal or Gorilla Glue recommended for the permanent fit. The rear spoiler for RS/ST-style cars comes with a full fixing kit; we strongly recommend professional fitting for the spoiler given the fixing points involved, and DIY fitting with adhesive tape for the splitters.
Frequently Asked Questions
Will the ST splitter fit a standard Focus?
No — it's shaped for the ST bumper specifically. Please check your bumper against our fitment photos first.
What's the difference between the RS and ST splitters?
They're built around different bumper shapes, since the RS bumper has a wider, more aggressive lower intake than the ST. They are not interchangeable.
Do I need the base spoiler before fitting the lip spoiler?
Only if your Focus is a standard, non-ST/ST Line model — ST and ST Line cars can fit the lip spoiler directly.
Is professional fitting required?
It's recommended rather than required for the splitters (DIY-friendly with adhesive), but strongly recommended for the spoiler given the fixing kit.
Shop Ford Focus Parts
Browse the full range of Ford Focus styling parts in our Ford Focus collection.