Optional upgrade for Existing Axle Back System - NAS Model Only
SKU: SSXBM1237
Parts
Documents
Description
Already running the BMW G42 M240i NAS axle-back system? Upgrade to a full cat-back without cutting the OE exhaust. This optional upgrade kit converts an existing Milltek Sport axle-back system into a complete Milltek cat-back, unlocking improved flow and a fuller exhaust note from the catalyst rearward.
Manufactured to the same standard as the rest of the Milltek system in T304L stainless steel with mandrel-bent piping. Designed for direct fitment alongside the original axle-back hardware — no permanent modifications to the vehicle or the existing system are required.
Please note: This upgrade is for NAS (North American Spec) M240i G42 Non-OPF/GPF models only.
Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.
Key Facts
| Pipe Diameter | 76.20 |
| 1.5 to 2 hours to fit (including removing OE system) | |
| Race Product | No |
| EMarked | No |
System Fitment List
Shipping Information
This system ships in 1 box.
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