Every 15k with a good inspection and knock out upside down, each oil change in between (to release larger particles). Looking for aftermarket parts to modify or upgrade your bmw m340i with air filters If i were to go aftermarket panel filter, this would be the choice since it's a dry filter, no oil that could potentially mess with the maf
JXL Performance Genuine BMW Air Filter - BMW B58 M240i G42 M340i G20
The performance gains might be minimal, but perhaps there's.
What's the best brand besides oem for a b58 engine
I heard a lot of things about stp, mann or cat quest Something that's available around me locally Only oem or oe which is mann Order bmw m340i air filter online today
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