Is it normal for there to be a hissing sound coming from aftermarket intake? I just installed my berk inake with k&n filter last week and I've noticed that when I do not press on the gas or go WOT, everything is fine, but when I am partial throttle, there is this slight hissing sound. Is this normal? I've checked all the connections and everything is very tight.

 

yes perfectly normal.. just the sound of air coming in.
i bet you get the hissing around 2500 rpm

 

Yea, exactly around there. Higher up there is nothing. Ok, just making sure, thanks.

 

Yup its perfectly fine. i have the same noise but at like 3500 to 4000

 

So it looks like we established this as being normal, move on folks there's nothing to see here.

 

Yeah, don't worry about it. I also have a Berk, same thing.

 

You and your dumb questions NJ Devils Fan

 

Same here, but I have noticed that as the K&N filter gets alittle dirty the hiss/whistle is less loud. Also, with time the slight low end loss in power is gone.

Anyone else notice this?

 

yup pretty standard for intakes

 

Shut up polak, just because I tried to use a screwdriver instead of an allen wrench doesn't make me stupid...i'm just special. What a way to wave or say something when you saw me that time at the GS plaza...

 

Just because you rode the short bus doesn't mean you have to ask for pity.

 

I was right in front of your car on my bike...any closer, and I'd be under it. I did beep.

 

This is kind of OT, but does the Maxima drone on the highway with an aftermarket intake? My old car did and it was really annoying to hear a constant whoooooooo sound,

 

No drone. Intake noise is relative to engine load vs throttle opening.

 

OK, let's say I'm going 75-80MPH and the engine is at approx. 3k RPM, any droning? Thanks for the insight

 

No, not as you are crusing along. You will hear it if you suddenly accelerate like when you are passing, but then all is quiet.

 

It's been a while since being on the boards. Brian's site used to be www.berktuning.com, but the link is dead. I need to order another Apexi filter. Any suggestions?

 

www.berktechnology.com

 

Depends if your engine is under load .. it will emit a slight gorwl depending on engine load, if :cruising: no drone ... you're thinking of exhaust drone

 

CAI's hiss even louder. just switched back to stock today and noticed a huge diff in throttle response. don't know why i hadn't done this earlier