BMW B46 non-OPF downpipe | Stone Exhaust A224E for G20 F30 F32 X3

Direct-fit catalytic downpipe for B46 engines without OPF - works on G20 330i, F30 330i, F32 430i, X3 30i (2016-2018) and others listed. Not for OPF-equipped cars.

• Eddy-flow catalytic design - retains Euro 6 compliance and UK MOT legality while reducing backpressure
• SUS304 stainless steel - CNC-bent to 0.025mm, dual cross-welded turbo flange for durability
• Stage 1-2 fast-road or track-day fit - bolt-on install, no modification needed, zero CEL risk when paired with stock ECU