The sound of ///M

The sound of ///M

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Output Flange

Original Poster:

16,799 posts

211 months

Sunday 19th March 2017
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Was listening to some videos of GrpA E30 M3s, M1 Procars and the like.

All of them had the distinctive metallic rasp as they were being ragged mercilessly. But what is is that gives them that noise? The air boxes?

By contrast, the GrpA 635CSi doesn't sound anywhere near as good to me. So maybe it's the ITBs?

What's the thoughts, chaps?