Hate to add to a old post but I just bought a 97 540i and its got a botched CCV delete and I need a good proven fix for the external catch can setup....
The Bridgestones I ordered Thursday evening arrived on Tuesday, which was 15 - 20 days (boat express!) before they suggested. Must have been shipped...
It’s not a myth lol. They have the exact same stroke, compression ratio, bore, they’re both SOHC. The only real difference is it’s an aluminum block....