4" Cold Air Intake System Kit + Red Filter For BMW 2019+ M340i G20 G21 B58 3.0L

Cold Air Intake System Kit for BMW

This 4 inch cold air intake system kit with a red filter is designed for the BMW 2019 and newer M340i G20 G21 with the B58 3.0L engine, helping feed more airflow into the engine for improved throttle response.

Overview

This cold air intake system kit is built for the BMW 2019 and newer M340i G20 G21 B58 3.0L, replacing the factory air box with a high-flow setup. The 4 inch intake tube and red cone filter work together to reduce restriction and deliver cooler, denser air to the engine. It is aimed at BMW owners who want a straightforward bolt-on intake upgrade for daily driving or spirited use.

Built For Performance

• 4 inch diameter intake tubing for increased airflow over the stock setup
• Red cone style air filter element for high flow filtration
• Designed specifically for the B58 3.0L engine platform
• Kit includes intake pipe, filter, and mounting hardware
• Mandrel style tubing construction for smooth internal airflow
• Direct fitment for the G20 and G21 chassis

Fits These Machines

• for BMW M340i G20 2019 and newer
• for BMW M340i G21 2019 and newer
• for BMW models equipped with the B58 3.0L engine

On-The-Job Use

• Daily driving where improved intake sound and response are wanted
• Spirited street driving with the B58 3.0L engine
• Track day use where consistent airflow matters
• Enthusiast builds focused on bolt-on engine breathing

Specs At A Glance

Good To Know

Q: Does this kit require tuning? A: A cold air intake can be run on a stock tune, though a custom tune may help maximize gains. Always verify fitment for your exact model year and engine.

Q: Is the filter washable and reusable? A: Most cone filters of this type are reusable and can be cleaned with a proper filter cleaning kit. Confirm the filter maintenance requirements before regular use.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.