Hello, I have a 2003 Accord 4cy/auto. Earlier this week I installed a K&N Typhoon CAI on my car. Except for this intake the car is completely stock. I have put CAI on 2 other vehicles (2500HD truck and Spyder) but never had them act the way this one does. I have tow main issues with my CAI and I was wondering if someone could tell me if this is normal.

1. The is a loud humming droning noise that occurs when the car is either in park, or in gear and at a stop light. As soon as I get going (RPM's increase) it goes away and the normal CAI "sucking/wooshing" begins. This constant humming sound while at stop lights is fairly annoying. Is this normal or is something not installed correctly?

2. The CAI sounds good from just above idle all the way to about 3500-4000 RPM's then it gets really loud. Again, is this normal or is something not installed correctly? This issue doesn't bother me I just want to make sure that everyone else's CAI's do the same thing.

I was expecting this CAI to work like the others that I installed (no noticeable increase in power, but a nice "throatier" sound) but this one has me wondering. I probably wouldn't have installed it if I would have known it was going to make the very annoying droning/humming sound at idle:doh:

Thanks in advance

 

well based on experience the cheaper intake tubings ( eBay type ) tend to suck and produce a gawd aweful noise. Similiar to what your hearing.

I bought one of those ebay intakes and I only had it installed for 15 minutes.
After i installed it I drove around the block came back home, removed it, installed my stock one and put the ebay one in the trash.

Would you be able to return the one you have for an AEM one? I think those are much better

 

Unfortunately I bought it online and can't return it since it has been installed Since the unit is a 2 piece (SRI and CAI) one I am going to try it out just as a SRI and see if that helps at all.

 

Or you could put it up on ebay, take a loss and get an AEM...

 

So after speaking with KN and telling them my problems, they said that I could send it back to them directly and get a full refund of my money! I already pulled it out and put the stock intake back in, however I have not yet put in the lower part of it (I believe its the resonator???) because its kind of a PITA. Will it do any harm (less power or fuel economy) if I don't put this piece back in?