Milltek GPF/OPF Bypass New for New Mini Mk4 Cooper S F66 2.0T B48 (2024 onwards) – Filter Delete, Motorsport Use
This is Milltek's GPF/OPF bypass pipe for the New Mini Mk4 JCW F66 2.0T B48 (OPF/GPF 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 fits to milltek OPF/GPF back system and OE downpipe or fits to OE OPF/GPF back system and OE downpipe versions, 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: 76.2mm (3")
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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
- 76.2mm (3") pipework
- Straight-through pipe in place of the factory petrol particulate filter (off-road and competition use only)
- Designed, developed and manufactured in the UK by Milltek Sport
Fitment
- New Mini Mk4 Cooper S F66 2.0T B48 (2024 onwards)
- New Mini Mk4 JCW F66 2.0T B48 (OPF/GPF Models Only) (2024 onwards)
Not suitable for: any model, engine or body style not listed above. Check your car before ordering.
Installation
Some versions: Fits to Milltek OPF/GPF Back System and OE Downpipe. Some versions: Fits to OE OPF/GPF Back System and OE Downpipe. 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 Filter-back Exhaust New Mini Mk4 Cooper S F66 2.0T B48 24+.
Will it fit the New Mini Mk4 JCW F66 2.0T B48 (OPF/GPF Models Only)?
Yes. Milltek lists this part for the New Mini Mk4 JCW F66 2.0T B48 (OPF/GPF 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?
Yes. Milltek lists it for use with the factory (OE) exhaust system.
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.
