Quote:
Originally Posted by COcyclist
They do not recommend aftermarket cone style filters as the factory filter is already very good and free flowing.
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Yes I've heard that before. A diesel engine normally gets an abundance of air to work with. Maybe if it got 100hp/liter it could benefit from another filter. That could be a test for the dynamometer when it will get the software upgrade ...
Quote:
Originally Posted by COcyclist
. The wipers are in a “pressure bubble” so nothing is to be gained there, at least on the Golf.
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The wipers stick out a bit on my car, they don't sit under the hood but quite high on the window. That's different for every car.