HJS ECE Downpipe BMW M240i,340i,440i,540i, 640i, 740i, 840i, Z4 M40i / Toyota Supra 3.0L OPF B58B30 9 (ECE)

HJS ECE Downpipe BMW M240i,340i,440i,540i, 640i, 740i, 840i, Z4 M40i, Toyota Supra 3.0L OPF B58B30 9 (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 M240i,340i,440i,540i, 640i, 740i, 840i, Z4 M40i, Toyota Supra 3.0L OPF B58B30 9 (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 89 mm / 76 mm
• 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 M240i G42 B58B30 OPF (2021–2025)
• BMW 340i/440i/540i/640i/740i/840i B58B30 OPF (2019–2025, depending on model)
• BMW Z4 M40i G29 B58B30 OPF (2019–2025)
• Toyota GR Supra 3.0 A90/A91 B58B30 OPF (2019–2025)

Before ordering, verify the engine and body version, model year and the exact vehicle coverage of the selected catalytic-converter approval.