Milltek GPF/OPF Bypass for Ford Fiesta Mk8 & Mk8.5 ST 1.5 EcoBoost 200PS (Post Sept 2020 Models Only) (2020 onwards) – Filter Delete, Motorsport Use
This is Milltek's GPF/OPF bypass pipe for the Ford Fiesta Mk8 & Mk8.5 ST 1.5 EcoBoost 200PS (Post Sept 2020 Models Only). It replaces the section of pipe housing the factory petrol particulate filter with a straight-through pipe, clearing the last major restriction left in a modern turbocharged petrol exhaust once a de-cat and remap are already in place. It's offered in non-resonated or resonated versions and versions to suit the factory or a Milltek system, so you can pick the setup that suits how the car's used.
It's aimed at owners already running a de-cat and a supporting remap who want to clear the final restriction in the system, not a bolt-on for a car that needs to stay road legal.
Because it removes the particulate filter, it's intended for off-road and competition use. A car with the GPF/OPF removed will fail an MOT emissions test and isn't legal to use on UK roads.
Specifications
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System Type: GPF/OPF Bypass
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Pipe Diameter: 70mm (2.76")
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EC Approved: No
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Race System: Yes
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
- 70mm (2.76") pipework
- Straight-through pipe in place of the factory petrol particulate filter (off-road and competition use only)
- Resonated (quieter) or non-resonated (louder) versions
- Designed, developed and manufactured in the UK by Milltek Sport
Fitment
- Ford Fiesta Mk8 & Mk8.5 ST 1.5 EcoBoost 200PS (Post Sept 2020 Models Only) (2020 onwards)
- Ford Fiesta Mk8 ST 1.5 EcoBoost 200PS (Pre Sept 2020 Models Only) (2018-2020)
- Ford Puma ST 1.5 200ps EcoBoost (OPF/GPF Equipped) (2020-2023)
Not suitable for: any model, engine or body style not listed above. Check your car before ordering.
Installation
Some versions: GPF/OPF Bypass Non-Resonated for Fitment to Milltek Sport Cat Back Only. Some versions: GPF/OPF Bypass Non-Resonated for Fitment to OE Cat Back Only (OE system requires to be cut). Some versions: GPF/OPF Bypass Resonated for Fitment to Milltek Sport Cat Back Only. Some versions: GPF/OPF Bypass Resonated for Fitment to OE Cat Back Only (OE system requires to be cut). This work involves removing parts close to the turbo and engine, so we recommend fitting by a specialist with a ramp and suitable software support.
Upgrade Further
Also available from Milltek for this car: Milltek Active Valve Control Ford Fiesta Mk8 & Mk8.5 ST 1.5 EcoBoost 200PS Post Sept 2020 20+, Milltek Downpipe Ford Fiesta Mk8 & Mk8.5 ST 1.5 EcoBoost 200PS Post Sept 2020 20+, Milltek Cat-back Exhaust Ford Fiesta Mk8 & Mk8.5 ST 1.5 EcoBoost 200PS Post Sept 2020 20+.
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.
Will it fit the Ford Fiesta Mk8 ST 1.5 EcoBoost 200PS (Pre Sept 2020 Models Only)?
Yes. Milltek lists this part for the Ford Fiesta Mk8 ST 1.5 EcoBoost 200PS (Pre Sept 2020 Models Only) as well as the other models in the fitment list above.
Is it road legal?
No. Removing the particulate filter means the car will fail an MOT emissions test, so it is for off-road and competition use only.
Do I need a remap?
A suitable remap is strongly recommended, as the engine management needs to account for the change in flow and sensor readings. Speak to your tuner before fitting.
Can I use it with my standard exhaust?
It depends on the version. Some are made for the factory (OE) system and others for the Milltek cat-back, so check the notes for the option you choose.
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.
