This decat downpipe for B58 OPF/GPF models is designed for maximum exhaust gas flow and improved performance. By removing the catalytic converter, back pressure is significantly reduced, resulting in faster turbo response, more power, and a more aggressive exhaust sound.
The downpipe is manufactured from high-quality stainless steel and is suitable for various modern BMW and Toyota B58 platforms with an OPF/GPF filter.
Advantages
• Less back pressure
• More power and torque
• Faster turbo spool
• Sportier exhaust sound
• High-quality stainless steel construction
• Suitable for high-performance builds
• Direct fit for OPF/GPF models
Technical specifications
• Type: decat downpipe
• Material: stainless steel
• Motor side connection: 135 / 115 mm
• Outlet side connection: 95 / 70 mm
• Version: 2 connections
• Suitable for: OPF / GPF models
Compatibility
• BMW M240i G42 – B58 (2021–)
• BMW M340i G20 / G21 – B58 (2020–)
• BMW 540i / 545e G30 / G31 – B58
• BMW 640i G32 – B58
• BMW 740i / 740e G11 – B58
• BMW 840i G14 / G15 / G16 – B58
• BMW Z4 M40i G29 – B58
• Toyota Supra MK5 A91 – 3.0 B58
Important information
• For motorsport / track use only
• Not permitted for public use within the EU
• ECU software modification required
• Only suitable for OPF / GPF vehicles
Contents
• Decat downpipe
Frequently Asked Questions
Why install a decat downpipe?
For better airflow, more power, and faster turbo response.
Is tuning necessary?
Yes, the ECU software needs to be adjusted.
Is this street legal?
No, only intended for motorsport and track use.
Does this fit all B58 models?
Only on the listed OPF/GPF vehicles.
