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E36General discussion and technical help for (E36) 1992-1999 3 series cars. 318, 323, 325, 328.
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Your Ride: 1993 325is
Cold Air Intakes
i got a 1993 325is, and i was thinking of putting an AEM cold air intake into it, i have asked a few people and some say its a good idea and others say its a terrible idea, i was just wondering what you guys think?
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Your Ride: 1995 325i
What's the point of doing this? It's my understanding that for proper engine operation, fuel economy, emissions control, etc., the air/fuel mixture has to be within a certain range, which would be defeated by this setup.
An e36 has a muffled air intake so that the intake roar is not audible outside the car. Some folks have debaffled their airbox so it flows a little easier. Purchasing an aftermarket air inlet will not give you any benefit beyond what debaffling your air box will give you. There are instructions posted in various places for how to do it.
Don't expect any noticeable difference from an after-market system or from debaffling your air box, other than more noise.
Also, aftermarket air inlets reduce the resale value of the car, so if you buy one, keep your airbox to put back when you want to sell the car.
Don't use an oiled cloth filter. No one ever keeps them oiled properly, so they end up letting a lot of dirt into the engine.