Take your driving experience to the next level with the Wagner decat Downpipe kit, designed for the powerful BMW B58 engine. This Downpipe is available with a racing catalytic converter (200 CPSI) or as a version without a catalytic converter, allowing you to customise the vehicle to your own preferences. The kit fits various BMW models, including the F20/21 M140i, F22/23 M240i, F30/31/34 340i, F32/33/36 440i, G30/31/38 540i, G32 GT 640i, G12 740i, X3 G01 M40i and X4 G02 M40i.
The Downpipe is manufactured from high-quality cast stainless steel 1.4301 (SS304) for exceptional durability and corrosion resistance. With a diameter of Ø3.5 and an included adapter for a perfect fit to the original exhaust, seamless integration is guaranteed. The CAD-optimised design improves flow dynamics, whilst two lambda sensor connections enable accurate exhaust gas measurements. Installation is carried out directly in place of the standard component with a 100% fit guarantee. The reduced thermal load on the turbo extends its service life, whilst the lower back pressure delivers increased torque. This Downpipe kit is suitable exclusively for vehicles without a GPF.
Features
- High-quality cast stainless steel 1.4301 (SS304) for durability and corrosion resistance
- Diameter Ø3.5 with adapter for a perfect fit to the original exhaust
- CAD-designed and flow-optimised for improved flow dynamics
- 2 lambda sensor connections for accurate exhaust gas measurements
- Easy replacement of the standard part, 100% fit guaranteed
- Lower thermal load on the turbo for a longer service life
- Enhanced performance due to reduced back pressure
- Significant increase in torque
- Choice between a racing catalytic converter (200 CPSI) or no catalytic converter
- Suitable only for vehicles without a GPF
Technical specifications
- Material: cast stainless steel 1.4301 (SS304)
- Diameter: Ø3.5
- Connections: 2 lambda sensor connections
- Version: with racing catalytic converter (200 CPSI) or without catalytic converter
- Adapter for connection to the original exhaust
Contents of the set
- Wagner decat Downpipe kit
- Adapter for connection to the original exhaust
- Installation instructions
Frequently asked questions
Which vehicles is this Downpipe compatible with?
The kit is compatible with various BMW B58 models, including the F20/21 M140i, F22/23 M240i, F30/31/34 340i, F32/33/36 440i, G30/31/38 540i, G32 GT 640i, G12 740i, X3 G01 M40i and X4 G02 M40i.
Can I choose between a version with or without a catalytic converter?
Yes, the Downpipe is available with a racing catalytic converter (200 CPSI) or as a version without a catalytic converter.
Is this Downpipe suitable for vehicles with a GPF?
No, this kit is only suitable for vehicles without a GPF. As the catalytic converter has been removed, an error message may appear in the DME.
