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Ok, so the rear diffuser doesn’t look massively aggressive, and then you look underneath and discover that it has a massive hole that is where they clearly stick an automated tow bar (on an RS4, really?). And the hole must be a massive air trap where it should be slick, so the question is:
Does anyone know where you can get a bad ass rear diffuser?

ABT do one - looks a bit plain though https://www.abt-sportsline.com/abt-limi ... abt-rs4-r/

I have the factory carbon diffuser, is it any better?

TX.

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