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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > 335d CAI?

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      12-21-2011, 10:20 AM   #1
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335d CAI?

Anyone put a cold air intake on the d? Any performance increase?

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      12-21-2011, 12:08 PM   #2
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scroll down a bit, although they are not really "cold" air intakes in the true sense. a cone filter will make your car sound better but unlikely to yield power gains; not to mention filtration is usually very poor by comparison with stock filter, so they will let more shit into your intake/engine.
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      12-21-2011, 12:08 PM   #3
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There isn't a CAI for our car yet. Additionally, given the location of the airbox of the car, and the serious lack of room in general in our engine bay, it's going to be a challenge to do so.

Most any of us have done, that I'm aware of, is to remove the intake box and replace the air filter with a cone.
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