I got my accord CAI from eBay seller eautoracing. Shipping was quick. Anyways, I installed it yesterday. It sounds and looks great; however, there's a loud noticeable humming sound. It seems that is comming from the end of the pipe where the air filter is. This humming sound pitch does not change at all even when stepping on the accelerator. The sound is constant and never changes. Do you know what might be causing that? I have recorded the sound for you guys using my iRiver H10. You will notice that the humming sound will increase as I place the recorder on the floor close to the driver side tire where the air filter is. I hope this has been discussed before and that there's simple solution to this. I want this sound gone or at least minimized... I am very frustrated as it took me about 6 hours to perfectly do this CAI mod. I did make sure everything is plugged back in (small little blue hose. MAF sensor, and battery) as well as tighten up all hose clamps. BTW, I am using a K&N RU-3580 air filter instead. Also, the pipe's diameter is 2.75". Click here to listen to the sound.
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