The Factory BMW intake on the F30 BMW 328i is extremely quiet to the point that you cannot hear any turbo noises at all. To change this there are numerous intake options from MST, AFE, CTS and many other brands. Most on these intakes are essentially the same which drove my decision to go with CST based on price. I also went with the FTP turbo inlet for my BMW. This decision was based on price as well as it being one solid piece as opposed to MST which uses a silicone coupler.

This modification makes so much turbo noise it is nonstop whooshes and blow off sounds!

CTS Intake https://www.ecstuning.com/bctsparts...

FTP Inlet https://www.ecstuning.com/bftpmotor...

Tools and Products for my F30:
Ethernet Cable https://amzn.to/3zUZNoS
WiFi Antenna for F30 (for Apple CarPlay) https://amzn.to/3JSdn0G
Laptop Adapter (USBC) https://amzn.to/3JVUXfq
iPhone Adapter https://amzn.to/3JQY5JK
Black F30 Kidney Grills https://amzn.to/3pip9In
BMW Floating Center Caps: https://amzn.to/3wNTPFm
Pick Tools: https://amzn.to/3ehIC9G