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

4" Cold Air Intake System Kit & Black Filter for BMW M340i G20 G21

This 4 inch cold air intake system kit with a black filter feeds cooler, denser air into the B58 3.0 engine on your BMW M340i, replacing the restrictive factory airbox for improved airflow.

Overview

This 4 inch cold air intake system kit routes outside air straight into the B58 3.0 engine for a cooler, denser charge. It includes a black reusable filter and replaces the factory airbox on the M340i. Drivers chasing better throttle response and a stronger intake sound will find this cold air intake system kit a solid fit.

Built For Performance

• 4 inch mandrel-bent intake tubing for smoother airflow
• Black reusable cone filter with high-flow filtration media
• Designed around the B58 3.0 engine layout
• Heat shield compatible routing to limit hot engine bay air
• Direct-fit mounting hardware 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 3.0 B58 engine models

On-The-Job Use

• Daily driving with sharper throttle response
• Spirited back-road and track-day sessions
• Enthusiast builds chasing intake sound and airflow
• Replacing the restrictive factory airbox setup

Specs At A Glance

Good To Know

Q: Will this intake require a tune? A: Many B58 setups run fine on the stock tune, though a custom tune can extract more from the added airflow. Check with your tuner for your specific build.

Q: Is the filter reusable? A: Yes, the black cone filter is washable and reusable with a proper cleaning and oiling kit. Clean it periodically depending on dust and driving conditions.

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