Milltek Downpipes & Cat Bypass Pipes for BMW 2 Series M2 Competition Coupé (F87) (2018 onwards) – Maximum Flow, Motorsport Use
This is Milltek's large-bore downpipe and de-cat for the BMW 2 Series M2 Competition Coupé (F87). It replaces the factory downpipe with a larger-bore pipe and removes the catalytic converter entirely, clearing the single most restrictive point in the exhaust for the biggest flow gain available at this position in the system. It's usually fitted alongside a Stage 2 remap, since the ECU needs to be told to expect the different readings the lambda sensors give once the cat's gone.
It's built for owners already committed to a serious power upgrade rather than a casual bolt-on, so pair it with the matching Milltek cat-back system for the full effect.
Because it removes the cat, it's intended for off-road and competition use. A de-catted car will fail an MOT emissions test and isn't legal to use on UK roads.
Specifications
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System Type: Large-bore Downpipes and Cat Bypass Pipes
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Pipe Diameter: 70mm (2.76")
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EC Approved: No
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Race System: Yes
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Fitting Time: approx. 3 to 3.5 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
- 70mm (2.76") pipework
- Removes the factory catalyst for maximum flow (off-road and competition use only)
- Designed, developed and manufactured in the UK by Milltek Sport
Fitment
- BMW 2 Series M2 Competition Coupé (F87) (2018 onwards)
Not suitable for: the BMW 2 Series M2 Coupe (G87 S58 NAS Non-OPF/GPF Models), which needs the Milltek Downpipes with Cat Bypass BMW 2 Series M2 Coupe G87 S58 OPF/GPF 23+; the BMW 2 Series M240i Coupé (G42 XDrive - NAS Non OPF/GPF Models Only), which needs the Milltek Downpipe & De-cat BMW 2 Series M240i Coupé (G42 XDrive - NAS Non OPF/GPF Only) 22+; the BMW 2 Series M240i Coupé (G42 XDrive OPF/GPF Models Only - Non Hybrid Pre LCI), which needs the Milltek Downpipe & De-cat BMW 2 Series M240i Coupé (G42 XDrive OPF/GPF - Non Hybrid Pre LCI) 22-25.
Installation
Milltek quotes a fitting time of approx. 3 to 3.5 hours. Before ordering, note: Removes OE Primary Cats and OPF/GPF's - Requires Stage 2 ECU Software - Must be fitted with Milltek Sport Catback Only. 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 BMW 2 Series M2 Comp Coupé F87 18+, Milltek GPF/OPF Bypass BMW 2 Series M2 Comp Coupé F87 18+, Milltek Cat-back Exhaust BMW 2 Series M2 Comp Coupé F87 18+.
Does it fit the BMW 2 Series M2 Coupe (G87 S58 NAS Non-OPF/GPF Models)?
No. For that car, choose the Milltek Downpipes with Cat Bypass BMW 2 Series M2 Coupe G87 S58 OPF/GPF 23+.
Is it road legal?
No. Removing the catalyst means the car will fail an MOT emissions test, so it is for off-road and competition use only.
Do I need a remap?
Yes. Milltek notes: "Removes OE Primary Cats and OPF/GPF's - Requires Stage 2 ECU Software - Must be fitted with Milltek Sport Catback Only". Without suitable software the engine management is likely to log faults.
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.
Will removing the cat cause a warning light?
Without suitable software it is likely to, as the ECU expects the readings a working catalyst gives. This is why Milltek pairs it with a remap.
How long does it take to fit?
Milltek quotes approx. 3 to 3.5 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.
