Uploaded December 2023 | Updated September 2026, 9 hours ago

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Let's take this 1981 BMW R100CS back to the old school with an airbox conversion. I've always loved the look of the classic clamshell box, as it feels much more aligned with the overall look of the engine and transmission. For some reason, BMW forgot about design aesthetics when producing the Post 81 version. Let's fix that!