Description
Upgrade the charge-air system of your BMW or Toyota GR Supra with the BMS B46/B48 Aluminum Charge Pipe, engineered as a stronger and higher-flowing replacement for the factory charge pipe. Designed for compatible B46 and B48 turbocharged engines across F- and G-chassis BMW applications, as well as the Toyota GR Supra Mk5 B48 2.0L, this system is built to provide improved airflow, increased durability, and reliable operation at elevated boost levels.
The BMS charge pipe is manufactured from high-gauge aluminum and features precision CNC-machined throttle-body and turbocharger flanges for an OEM-style fit. A black textured finish provides a clean appearance that integrates well with the factory engine bay.
The system replaces the factory BMW charge-air duct and provides a more robust solution for vehicles running increased boost or other performance modifications.
High-Strength Aluminum Construction
The BMS charge pipe is constructed from high-gauge aluminum to provide increased durability compared with the factory charge-air duct.
The aluminum construction is designed to withstand the increased pressure associated with higher-boost applications while maintaining a lightweight and performance-oriented design.
The increased internal diameter also provides a higher-flowing path for compressed intake air, supporting the airflow requirements of modified B46 and B48 engines.
CNC-Machined Flanges
Both the throttle-body and turbocharger connections feature CNC-machined flanges engineered for precise fitment.
This application-specific construction provides an OEM-style connection between the charge pipe and the vehicle's factory components while helping ensure proper alignment during installation.
Reinforced Silicone Coupler
The kit includes a heavy-duty reinforced silicone coupler designed to provide a secure connection between the charge-pipe sections.
The supplied O-rings, C-clip, clamps, and mounting hardware complete the installation package and allow the charge pipe to replace the factory components without requiring additional installation hardware.
Integrated 1/8" NPT Ports
Two 1/8" NPT ports are integrated into the charge pipe, providing convenient connection points for compatible accessories.
The ports can be used for applications such as:
- External boost gauges
- Boost pressure monitoring
- Water/methanol injection systems
- Other compatible 1/8" NPT accessories
The supplied NPT plugs allow unused ports to remain securely sealed.
Improved Reliability for Higher-Boost Applications
The factory charge pipe is replaced with a more robust aluminum construction designed for vehicles operating at increased boost levels.
The BMS charge pipe is therefore well suited to BMW owners running performance software, upgraded turbocharger systems, or other modifications that increase charge-air pressure.
The upgraded construction provides additional durability while maintaining compatibility with the specified factory intake and turbocharger connections.
OEM-Style Fitment
The BMS charge pipe is designed around the original vehicle connection points for straightforward installation.
The kit includes the necessary charge-pipe components and installation hardware, including:
- Aluminum upper charge pipe – throttle-body side
- Aluminum lower charge pipe – turbocharger side
- Reinforced silicone coupler
- T-bolt clamps
- NPT plugs
- Mounting bolts
- O-ring
- C-clip
OEM Replacement Reference
This charge pipe replaces OEM BMW Part #13718601683 charge air duct on applicable applications.
Important: Always verify the original BMW part number and vehicle configuration before ordering, particularly for 220i, 320i, and 420i applications.
Key Features
- BMS B46/B48 aluminum charge pipe upgrade
- Compatible with Gen 1, Gen 2, and specified Gen 3 B46/B48 applications
- Designed for BMW F- and G-chassis vehicles
- Compatible with Toyota GR Supra Mk5 B48 2.0L
- High-gauge aluminum construction
- CNC-machined throttle-body flange
- CNC-machined turbocharger flange
- Increased internal diameter for improved airflow
- Designed for improved reliability at elevated boost levels
- Two integrated 1/8" NPT ports
- Suitable for boost gauges or compatible water/methanol injection systems
- Reinforced silicone coupler
- Black textured finish
- OEM-style fitment
- Complete installation hardware included
Vehicle Fitment
BMW 1 Series
- 2016–2019 F20/F21 LCI BMW 120i / 125i — B46/B48
BMW 2 Series
- 2016–2021 F22/F23 BMW 220i / 230i, including Convertible and xDrive — B46/B48
- 2022–2025 G42 BMW 230i, including xDrive — B46/B48
BMW 3 Series
- 2016–2019 F30/F31/F34 LCI BMW 320i / 330i, including Touring, Gran Turismo and xDrive — B46/B48
- 2016–2018 F30 BMW 330e — B46/B48
- 2019–2025 G20/G21 BMW 330i, including Touring and xDrive — B46/B48
- 2021–2025 G20/G21 LCI BMW 330i, including Touring and xDrive — B46/B48
- 2019–2025 G20 BMW 330e — B46/B48
- 2025+ G20/G21 BMW 320i / 330i / 330e, including xDrive — B48 Gen 3
BMW 4 Series
- 2015–2020 F32/F33/F36 BMW 420i / 430i, including Gran Coupe, Convertible and xDrive — B46/B48
- 2021–2025 G22/G23/G26 BMW 430i, including Gran Coupe, Convertible and xDrive — B46/B48
- 2025+ G22/G23/G26 BMW 420i / 430i, including Gran Coupe and xDrive — B48 Gen 3
BMW 5 Series
- 2017–2020 G30/G31 BMW 520i / 530i, including Touring and xDrive — B46/B48
- 2018–2023 G30 BMW 530e — B46/B48
- 2021–2023 G30/G31 LCI BMW 520i / 530i, including Touring and xDrive — B46/B48
- 2024+ G60/G61 BMW 530i / 530e, including xDrive — B48 Gen 3
BMW 6 Series
- 2018–2024 G32 BMW 630i Gran Turismo — B46/B48
BMW 7 Series
- 2016–2019 G11/G12 BMW 730i / 730Li — B46/B48
- 2020–2022 G11/G12 LCI BMW 730i / 730Li — B46/B48
- 2016–2022 G11/G12 BMW 740e / 740Le, including xDrive — B46/B48
BMW X3
- 2018–2021 G01 BMW X3 20i / 30i, including xDrive — B46/B48
- 2022–2024 G01 LCI BMW X3 20i / 30i, including xDrive — B46/B48
BMW X4
- 2019–2021 G02 BMW X4 20i / 30i, including xDrive — B46/B48
- 2022–2025 G02 LCI BMW X4 20i / 30i, including xDrive — B46/B48
BMW X5
- 2019–2023 G05 BMW X5 xDrive40i — B48 2.0L markets
BMW X6
- 2020–2023 G06 BMW X6 xDrive40i — B48 2.0L markets
BMW X1
- 2023+ U11/U12 BMW X1 28i / xDrive28i — B48 Gen 3
BMW X2
- 2024+ U10 BMW X2 xDrive28i / M35i xDrive — B48 Gen 3
BMW Z4
- 2019–2025 G29 BMW Z4 sDrive30i — B46/B48
Toyota GR Supra Mk5
- 2020–2026 Toyota GR Supra Mk5 B48 2.0L Turbo 4-Cylinder
Fitment Note: Verify the exact engine, chassis, model year, and factory charge-pipe configuration before ordering. Some 220i, 320i, and 420i applications may have configuration-specific requirements.
What's Included
- (1) Aluminum upper charge pipe – throttle-body side
- (1) Aluminum lower charge pipe – turbocharger side
- (1) 3R2.5 reinforced silicone coupler
- (1) 2.5" T-bolt clamp
- (1) 3" T-bolt clamp
- (2) 1/8" NPT plugs
- (1) M6 x 1 x 16 mm bolt
- (3) M6 x 1 x 20 mm bolts
- (1) Small O-ring
- (1) C-clip
