Milltek Filter Back Exhaust Ford Fiesta Mk8 1.0T EcoBoost ST-Line 3dr 5dr 155ps Hybrid OPF/GPF 20+

Milltek Filter-back Exhaust for Ford Fiesta Mk8 1.0T EcoBoost ST-Line 3 & 5 Door (155ps Hybrid OPF/GPF Models Only (2020 onwards) – Sharper Sound, Filter Retained

This is Milltek's particulate filter-back system for the Ford Fiesta Mk8 1.0T EcoBoost ST-Line 3 & 5 Door (155ps Hybrid OPF/GPF Models Only. It replaces everything downstream of the factory diesel or petrol particulate filter with wider-bore pipework and re-tuned silencers, cutting back pressure and sharpening the exhaust note. The filter itself is left exactly where the manufacturer fitted it, so emissions equipment is unaffected. It's offered in non-resonated, resonated EC approved or resonated versions and 5 tailpipe finishes, so you can pick the setup that suits how the car's used.

It's the right choice if you want a sportier sound and a genuine, if modest, flow improvement on a filter-equipped car, without going anywhere near the parts of the system that keep it emissions-compliant.

Specifications

• System Type: Particulate Filter-back
• Pipe Diameter: 60.3mm (2.37")
• Race System: No
• Fitting Time: approx. 1 to 1.5 hours (Milltek figure)

Key Features

• Made from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration
• Mandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow
• 60.3mm (2.37") pipework
• Fits behind the factory particulate filter, which stays in place
• Choice of 5 tailpipe finishes: GT-90 Brushed Titanium, GT-90 Burnt Titanium, JET-90 Carbon Fibre, GT-90 Cerakote Black, GT-90 Polished
• EC approved versions available
• Resonated (quieter) or non-resonated (louder) versions
• Designed, developed and manufactured in the UK by Milltek Sport

Fitment

• Ford Fiesta Mk8 1.0T EcoBoost ST-Line 3 & 5 Door (155ps Hybrid OPF/GPF Models Only (2020 onwards)

Not suitable for: the Ford Fiesta Mk8 1.0T EcoBoost ST-Line 3 & 5 Door (100 & 125 OPF/GPF Models Only), which needs the Milltek Filter-back Exhaust Ford Fiesta Mk8 1.0T EcoBoost ST-Line 3dr & 5dr (100 & 125 OPF/GPF Only) 19+; the Ford Fiesta Mk8 1.0T EcoBoost ST-Line 3 & 5 Door (155ps Hybrid OPF/GPF Models Only) - Maxton Designs Dual Outlet Kits, which needs the Milltek Filter-back Exhaust Ford Fiesta Mk8 1.0T EcoBoost ST-Line 3dr & 5dr 155ps Hybrid OPF/GPF - Maxton Designs Dual Outlet Kits 20+; the Ford Fiesta Mk8 1.0T EcoBoost ST-Line 3 & 5 Door (100 & 125ps OPF/GPF Models Only) - Maxton Dual Outlet Kits, which needs the Milltek Filter-back Exhaust Ford Fiesta Mk8 1.0T EcoBoost ST-Line 3dr & 5dr (100 & 125ps OPF/GPF Only) - Maxton Dual Outlet Kits 19+.

Installation

Milltek quotes a fitting time of approx. 1 to 1.5 hours. Some versions: GPF/OPF Back Non-Resonated (Louder) with ST Style with Twin GT-90 Cerakote Black Trims (Required ST Rear Valance). Some versions: GPF/OPF Back Non-Resonated (Louder) with ST Style with Twin GT-90 Polished Trims (Required ST Rear Valance). Some versions: GPF/OPF Back Resonated with ST Style with Twin GT-90 Cerakote Black Trims (Required ST Rear Valance) - ECE Approved. Some versions: GPF/OPF Back Resonated with ST Style with Twin GT-90 Polished Trims (Required ST Rear Valance) - ECE Approved. We recommend professional fitting on a ramp. Once fitted, check the tailpipe alignment and re-check all clamps after the first few hundred miles.

What's the difference between the resonated and non-resonated versions?

The resonated version adds extra silencing for a quieter, more refined tone. The non-resonated version leaves it out, so it is louder and more aggressive.

Which tailpipe finishes are available?

You can choose from: GT-90 Brushed Titanium, GT-90 Burnt Titanium, JET-90 Carbon Fibre, GT-90 Cerakote Black, GT-90 Polished. The finish is cosmetic and does not change the sound.

Does it fit the Ford Fiesta Mk8 1.0T EcoBoost ST-Line 3 & 5 Door (100 & 125 OPF/GPF Models Only)?

No. For that car, choose the Milltek Filter-back Exhaust Ford Fiesta Mk8 1.0T EcoBoost ST-Line 3dr & 5dr (100 & 125 OPF/GPF Only) 19+.

Is it road legal?

Some versions are EC approved; check the EC Approved line in the specification for the option you choose.

Do I need a remap?

No. It fits behind the factory particulate filter, so no software changes are needed.

Does it keep the factory particulate filter?

Yes. It fits behind the factory particulate filter, which stays in place.

How long does it take to fit?

Milltek quotes approx. 1 to 1.5 hours.

What is it made from?

T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.

Is there a warranty?

Yes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.