Milltek upgrade for Existing Axle Back System Customers for BMW 2 Series M240i Coupé (G42 XDrive - NAS Non OPF/GPF Models Only) (2022 onwards) – Genuine Milltek Fitment Part
This is Milltek's axle-back exhaust for the BMW 2 Series M240i Coupé (G42 XDrive - NAS Non OPF/GPF Models Only). It replaces the exhaust from the rear axle back, the shortest section Milltek offers on this platform, swapping the factory tail section for wider-bore pipework and a silencer tuned for a sportier note. Everything ahead of the rear axle, including the mid-pipe, stays standard.
It's the option for a subtle, tail-end-only change in sound and look, rather than the fuller transformation of a cat-back or front-pipe-back system.
Specifications
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System Type: Additional parts
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Pipe Diameter: 76.2mm (3")
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EC Approved: No
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Race System: No
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Fitting Time: approx. 1.5 to 2 hours (Milltek figure)
Key Features
- Made from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration
- Genuine Milltek part designed to work with the matching Milltek system
- Designed, developed and manufactured in the UK by Milltek Sport
Fitment
- BMW 2 Series M240i Coupé (G42 XDrive - NAS Non OPF/GPF Models Only) (2022 onwards)
Not suitable for: the BMW 2 Series M2 Coupe (G87 S58 NAS Non-OPF/GPF Models), which needs the Milltek X Pipe Centre Section BMW 2 Series M2 Coupe G87 S58 OPF/GPF 23+; the BMW 2 Series M2 Competition Coupé (F87), which needs the Milltek Upgrade Kit for Existing Milltek Sport M2 Comp Owners to New Equal Length System BMW 2 Series M2 Comp Coupé F87 18+.
Installation
Milltek quotes a fitting time of approx. 1.5 to 2 hours. We recommend professional fitting on a ramp. Once fitted, check the tailpipe alignment and re-check all clamps after the first few hundred miles.
Upgrade Further
Also available from Milltek for this car: Milltek Active Valve Control BMW 2 Series M240i Coupé G42 XDrive OPF/GPF Non Hybrid Pre LCI 22-25, Milltek Downpipe & De-cat BMW 2 Series M240i Coupé (G42 XDrive - NAS Non OPF/GPF Only) 22+, Milltek Cat-back Exhaust BMW 2 Series M240i Coupé (G42 XDrive - NAS Non OPF/GPF Only) 22+.
Does it fit the BMW 2 Series M2 Coupe (G87 S58 NAS Non-OPF/GPF Models)?
No. For that car, choose the Milltek X Pipe Centre Section BMW 2 Series M2 Coupe G87 S58 OPF/GPF 23+.
Is it road legal?
Milltek does not list EC approval for this part. Any exhaust used on the road must still meet noise and emissions rules, so check the requirements where you live.
What does it work with?
Milltek notes: "Optional upgrade for Existing Axle Back System Customers - Axle back to full cat back upgrade (Allows the Axle back to be fitted without cutting or Upgrade Axle Back to Cat Back System)". Check this matches your current exhaust before ordering.
Is this a complete exhaust system?
No. It is designed to be used with the system or factory parts described above, rather than as a complete exhaust on its own.
How long does it take to fit?
Milltek quotes approx. 1.5 to 2 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.
