This weekend I picked up an AEM CAI. Installation instructions sucked IMO. I dont know much about engines other than the basics, stupid me. Anyway, after I looked at it for about 10minutes and figured out what went where, it was easy. I did find one thing odd, there was a small, 7-9inch brace that went from where the lower bolt on the stock air box went to the fender wall that had to be removed. I noticed nowhere in the instructions to do this but It was the only way to get the pipe to fit. Anyone else run into this (im sure you did)? What is that piece for?

Anyway, got it in after about 45minutes or so and its great. I love the fact that the sound doesnt really change in regular driving but when you get on it, it lets you know, especially above 5k. Not really sure if there is much of a performance change, but i'm sure there is a slight addition, even if its just a mental performance gain because of the sound.

Just wanted to share .......

 

ive been hearing a lot of people talking about hissing... i have not noticed any substantial hissing. when i first start it up i hear it for about 3 seconds (in the garage mind you) and then it isnt noticeable unless im under the bumper with my head next to the filter. then when i shut it down i hear one last hiss. takes all of a second.

 

Mine hisses a lot when the engine is cold. Not just while I'm letting it idle, but after I let it warm up a bit, when I start to drive it hisses loudly. But it goes away when the engine gets to normal operating temps.

 

But do you guys have bypass-valves? I have heard that's where the noise comes from...

 

1st of all congrats...hope it treats u well!!

2nd, hissing is perfectly normal...don't worry bout it at all...same thing when u shut her down...it'll sound like the car's farting...normal

 

i have bypass, but i never heard of the hissing comes from the valves

 

You'll notice the hissing more when the AC is on, & when the car is cold.

 

When I had mine installed, it used to make an awful humming noise. I got rid of it because it was soooo loud.

 

I took my bypass off, but it didn't seem to change anything.

 

congrats, now go driving around in vtec scaring the pedestrians with the deep growl of the intake

 

already done!


your right... i would definetly classify that sound as a "growl"

 

I think I scare pedestrians without the intake!! I'm in the search for one though, and cant wait...

 

Yea, the hymming sound gets annoying, like a high pitched horn

 

uhh... i know ive only had it for a couple of days now but i dont have any annoying sound.. it sounds stock to me unless i really get on it, i dont have any constant humming or hissing or anything. once i get on it i would expect it to get loud and growl.... and it does, but not till then