Description
Milltek BMW G8X M3/M4 – GPF/OPF Bypass – X Pipe is a configurable Milltek family. Select System Type to see the exact SKU and price for each configuration.
Official Milltek fitment:
- BMW > 3 Series > G80/G81 M3 & M3 Competition S58 3.0 Turbo (OPF/GPF Equipped Cars Only) inc Touring & XDrive Models > 2020 and Later
- BMW > 4 Series > G82 M4 & M4 Competition S58 3.0 Turbo (OPF/GPF Equipped Cars Only) > 2020 and Later
Every variation is mapped to one exact Milltek SKU and the supplied Australian retail price including GST and excluding domestic freight.
Important configuration requirements
Requirements vary by the selected Milltek configuration:
- System Type: Milltek Axle-Back (SKU: SSXBM1338): Requires a Stage 2 ECU remap or compatible OPF/GPF bypass module.
- System Type: OE Axle-Back (SKU: SSXBM1336): Requires a Stage 2 ECU remap or compatible OPF/GPF bypass module.
Please select the configuration that matches the vehicle and existing exhaust. Your VIN will be checked as an additional fitment safeguard.




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