HJS ECE Downpipe BMW 20i/30i B48 F- and G-series OPF up to 10/2020 (ECE)
A downpipe is one of the most popular turbo-engine upgrades. A freer-flowing exhaust side can add a sportier sound while supporting throttle response and power potential. Read more in the Futurez downpipe guide.
This product includes model-specific ECE approval. The ECE version is intended for legal road use in the vehicle applications covered by the approval.
HJS ECE Downpipe BMW 20i/30i B48 F- and G-series OPF up to 10/2020 (ECE) offers vehicle-specific bolt-on fitment in place of the original downpipe. Its larger diameter and freer-flowing shape reduce back pressure after the turbocharger. This can sharpen turbo response and reduce exhaust-side thermal load, particularly on tuned engines.
- Pipe size 76mm
- Vehicle-specific construction
- Freer-flowing design reduces exhaust back pressure
- Helps reduce thermal load on the turbocharger and exhaust side
- Manufactured from stainless steel
- Bolt-on fitment
Examples of compatible vehicles
- BMW 320i/330i G20/G21 B48 OPF (2019–10/2020)
- BMW 520i/530i G30/G31 B48 OPF (2017–10/2020)
- BMW X3 G01 20i/30i B48 OPF (2017–10/2020)
- BMW Z4 G29 20i/30i B48 OPF (2019–10/2020)
Before ordering, verify the engine and body version, model year and the exact vehicle coverage of the selected catalytic-converter approval.


