K&N FIPK too noisy?

spham · December 24, 2001

I realized it's loud under acceleration, but today I found out it's also loud at 80mph, like there was this constant resonance coming from the intake tube. And it almost never went away at that speed. I gotta admit, I don't think I will enjoy that. Is this normal? Can you put sound insulation around the tube or something?

raventai · December 24, 2001

dont think batting in that area would do much for you

some sound dampening material in the cab floor/firewall would help a lot, if u did the doors, backwall and roof also it would help with road/wind noise also

it is pretty easy to remove the seats carpet ect to install that stuf or a stereo shop could do it

dynamat is the well know brand, but pricy for high-tech tar paper. there are other brands that are just as good but much more reasonable

chevy4x4trucks · December 24, 2001

I'm w/ raventai, get some sound deadening at the local hardware store. It'll be about 1/20th the price of dynamat and should work just the same. It's a good idea to do it anyways since it will cut down on road noise as well. My K&N is loud, but I really haven't noticed it that much. If I have some music on or even the heater blowing I don't hear it. Mine was really loud when I first got it, but after a week or two it didn't seem as loud.

spham · December 26, 2001

Thanks. Sounds like a good idea. I figure if I was to add headers, it'd be even noiser. Best to insulate the cabin.

raventai · December 27, 2001

just noticed u have a suburban (sorry, figured u had a truck)

I have heard the suburbans/blazers/jimmys ect. get bad reverb. from exaust noise at freeway speeds as the cabin is open to all that area, sound dampening would be a good idea maybe eaven 2 layers

do the doors floor firewall sidewall in the back and maybe eaven the roof

TahoeJeff · December 28, 2001

Yeah, I have a Tahoe and noticed some rear exhaust roar at 80 to 85 this weekend. I still would not think of giving up the Flow or the FIPK!! I could never go back to the way it was. It sounds like it is coming in at the bottom of the lift gate , so I will look at trying to insulate there. I plan to just try a very thick blanket at the bottom of the lift gate. The noise is not too bad up front but could probably get to people in the back seat.