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Engineered for BMW 325i, 325Li, and 330i G20/G28 B48 2.0T models (2019-2024) to deliver cooler, denser air while eliminating factory airbox restrictions.
Performance Benefits
The sealed carbon fiber airbox design isolates the filter from engine bay heat, reducing intake air temperatures (IAT) and maintaining consistent power delivery. Unlike open cone filter setups that suffer from heat soak, this system keeps IATs low - critical for turbocharged B48 engines.
Construction & Design
Crafted from 100% prepreg carbon fiber, the airbox and intake tube offer superior heat insulation and lightweight construction. The integrated MAF sensor mount ensures factory-like fitment and reliable sensor readings.
Designed for off-road / racing use only in some regions. Check local regulations.
Professional installation recommended.
Always inspect the filter and hardware before every use.
Product Images
Frequently Asked Questions
Will this carbon fiber intake fit my 2020 BMW 325i or 330i?
Yes. It is designed specifically for the G20/G28 325i, 325Li, and 330i with the B48B20 2.0T engine (2019-2024). Direct bolt-on fit with factory mounting points.
Does it require ECU tuning?
No. It works with the factory ECU. No remapping of ECU/DME is required. A custom tune can maximize gains but is not necessary.
What performance gains can I expect?
Independent dyno testing on comparable B48 intake systems shows gains of up to +15 HP over the stock airbox, with a 58% increase in airflow compared to the factory system. Gains vary by fuel quality, altitude, and supporting mods.
Will it fit other BMW B48 models?
Yes. It also fits G20/G21 320i/320e/330e, G22/G23/G26 420i/430i, G42 230i, and G29 Z4 20i/30i with the B48 2.0T engine.
Will it trigger a check engine light?
No, if installed correctly. The MAF sensor housing is designed to factory specifications. Always reconnect the sensor properly.
How do I clean the filter?
Use a cold air intake cleaning kit. The filter is a washable, reusable high-flow cotton gauze type. Clean every 30,000-50,000 km depending on driving conditions.
Is installation difficult?
It is a direct bolt-on job using factory mounting locations. Basic hand tools are enough. Installation takes about 60-90 minutes. Professional installation is recommended.
Does it increase intake sound?
Yes. You will hear more turbo spool and diverter valve sound, especially under acceleration. The sealed airbox design keeps the sound refined and reduces unwanted intake noise.
What is the factory OE part number?
The main air filter OE number is 13718635102 (or 13 71 8 635 102). Also compatible with 13718580428, 13718580427, and 13718580429. This helps confirm fitment.
What warranty do you offer?
Limited 2-year warranty against manufacturing defects. Does not cover improper installation or racing use.
Guangzhou Modify-ah Automobile Technology Co., Ltd. was founded in 2004. It is a high - tech enterprise integrating R & D, production, sales, and operation of high - performance auto parts. The company focuses on suspension upgrade, air intake upgrade, motor-sport, carbon fiber products, and pro... Guangzhou Modify-ah Automobile Technology Co., Ltd. was founded in 2004. It is a high - tech enterprise integrating R & D, production, sales, and operation of high - performance auto parts. The company focuses on suspension upgrade, air intake upgrade, motor-sport, carbon fiber products, and pro...
