Looking for some expert advice

[Big_THoe]

Just installed a new K&N high flow cold air intake and the engine growls at random speeds, not just open throttle. Pulling from a light and easy on the pedal it growls, shifting from 2nd to 3rd it growls, open throttle this thing sounds like a T-Rex. While I love the sound at OT, the other instances are a bit too much!! So my question, since I’ve installed it and can’t take it back, would a smaller Filter fix my issue. I don’t have a ton of options as the Flange diameter is 6 inches but I do see smaller units available on the K&N site.

 

[jerry455]

I used the mini kit, just the intake tube from the throttle body to the stock air filter housing and a K&N filter, stock Suburban sized. It sounds great. It has a nice growl when accelerating. You might see if another brand or type of filter would fit. I know some vehicles use a paper, stock, type of material.

 

[RST Dana]

Changing filter types probably won’t make the difference you are seeking. I covered one of the openings once years ago, leaving only the opening toward the wheel well. It did reduce some of the growl, but not all.

 

[Big_THoe]

Thanks for the replies guys. I think restricting the flow is the way to go, that’s why I thought of a smaller filter. I might try one of K&N own Dryflow filters, the one I am thinking is a couple of inches shorter than the one I currently have.

 

[Rocket Man]

I mean, you added a high flow CAI and now you’re going to restrict it? That’s going backwards from stock. Just reinstall the stock CAI , add an aftermarket high-flow filter and sell the K&N CAI.

 

[houstontaylor]

Because those cold air intakes don't have a resonator cavity they allow too much noise from the engine to build up.

 

[jerry455]

I would'nt say too much noise, I love the sound of the K&N intake kit I have. I think I have the jr. kit, intake tube and replacment air filter, using the stock air cleaner and intake set up.