ECS Tuning Engine Bay Block Off Plugs - Set - Audi B9 Tailpipes What it will do however

What it will do however is clog up with air born dirt far slower than a standard paper or cotton filter

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F21) (2018-19)

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ECS Tuning Engine Bay Block Off Plugs - Set - Audi B9 Tailpipes What it will do howeverFrom the factory, the B9 Audi comes with plastic 3 pronged caps to plug the holes in both wheel wells. Unfortunately when driving in wet, dirty, or snowy conditions, these unsealed gaps allow all of that mess to sling off of your tires, directly onto the cap and into the engine bay. This results in not only a messy look but allows corrosive salt to enter the engine compartment. Check out our before and after photos for a side by side comparison, or