Description
Upgrade the exhaust flow and performance potential of your BMW B48-powered vehicle with the DCE Parts B48 Downpipe. Designed for a wide range of BMW F and G chassis applications, this downpipe features a Slip-On Clamp Type outlet and is available in multiple configurations, including full decat, catalytic-converter-look catless, and high-flow catalytic converter options.
Replacing the restrictive factory downpipe with a larger-flowing design can help reduce exhaust backpressure and improve turbocharger response. Depending on the vehicle, ECU calibration, and supporting modifications, the downpipe can contribute to quicker turbo spool, improved throttle response, and a more aggressive exhaust sound.
For catless configurations, ECU remapping may be required to properly accommodate the modified exhaust system. Performance gains vary depending on the vehicle and overall setup.
Downpipe Options
DCE Parts offers multiple configurations for this B48 downpipe:
- High-Flow Cat: Available with a high-flow catalytic converter for an alternative exhaust configuration.
Key Features
- Designed for BMW B48 engines
- Compatible with selected BMW F and G chassis applications
- Slip-On Clamp Type outlet
- Available in catless and high-flow catalytic converter configurations
- Optional catalytic-converter-look catless design
- Larger-flowing downpipe design
- Helps reduce exhaust backpressure
- Can improve turbocharger response
- Enhances exhaust sound
- Available for multiple BMW models and chassis
- Maximum diameter: 5.7" / 145 mm including heat shield
- Diameter excluding heat shield: 5.5" / 140 mm
Specifications
- Engine: BMW B48
- Connection Type: Slip-On Clamp Type
- Maximum Diameter with Heat Shield: 5.7" / 145 mm
- Maximum Diameter without Heat Shield: 5.5" / 140 mm
- Available Configurations: Full Decat, Catalytic-Look Catless, High-Flow Cat
Fitment
BMW 1 Series – F Chassis
- F20 120i / 125i
- F21 120i / 125i
BMW 2 Series – F Chassis
- F22 220i / 230i
- F23 220i / 230i
BMW 3 Series – F Chassis
- F30 330e / 330i / 330iX
- F31 330i / 330iX
- F34 GT 330i / 330iX
BMW 4 Series – F Chassis
- F32 420i / 420iX / 430i / 430iX
- F33 420i / 420iX / 430i / 430iX
- F36 420i / 420iX / 430i / 430iX
BMW 7 Series – G Chassis
- G11 730i / 730Li / 740e / 740Le
- G12 730i / 730Li / 740e / 740Le
BMW 3 Series – G Chassis
- G20 320i / 320iX / 330e / 330eX / 330i / 330iX
- G21 320i / 320iX / 330e / 330eX / 330i / 330iX
BMW 5 Series – G Chassis
- G30 520i / 530e / 530i / 530iX
- G31 520i / 530i / 530iX
BMW 6 Series – G Chassis
- G32 630i GT
BMW X3
- G01 20i / 20iX / 30iX
BMW X4
- G02 20iX / 30iX
Important Fitment Information
This downpipe is designed specifically for vehicles with a Slip-On Clamp Type OEM downpipe outlet.
This version is intended for vehicles without an OPF/GPF filter and with the Slip-On Clamp Type connection.
The outlet configuration can vary between vehicles, particularly depending on the presence or absence of an OPF/GPF system. Some F2X and F3X BMW models may be equipped with an OPF while still using a Slip-On connection.
Please check your OEM downpipe outlet before ordering. If you are unsure about compatibility, contact us with your VIN so the correct configuration can be determined.
