K&N 63-3109

November 16, 2019

Anyone have any experience or thoughts about the K&N 63-3109? I would like to add a CAI, and even though I don't expect much of a HP gain with any setup, I want to get a good option. I like the Roto-Fab but the K&N can be had for $150 less. The snap on lid of the K&N with the rubber grommets is questionable to me for some reason. If anyone can give feedback it would be appreciated.

Mountain boy · November 16, 2019

Get the Roto Fab

Doolin-Dalton · November 18, 2019

On 11/16/2019 at 4:10 PM, 570590 said:

Anyone have any experience or thoughts about the K&N 63-3109? I would like to add a CAI, and even though I don't expect much of a HP gain with any setup, I want to get a good option. I like the Roto-Fab but the K&N can be had for $150 less. The snap on lid of the K&N with the rubber grommets is questionable to me for some reason. If anyone can give feedback it would be appreciated.

Not with this one specifically, but I have used KN in the past on my 2500HD w 6.0L V8 and was very pleased with it. One thing in particular, the K&N publishes the HP Gains from Dyno Tests. It looks like the results for the 5.3L V8 are 15.7HP gain and that is outstanding IMHO. The pictures I saw of the KN setup for the K&N 63-3109 have a nice factory finish under the hood, and the clip on top is using rubber grommets with oversized pins that pop into the holes, that would be a very tight seal, thinking about getting one myself now - where did you find it for $150? I'd snatch one up quick at that price, but that sounds too good to be true.

November 18, 2019

It's $150 less than Roto Fab. Found it for $335 on ebay. I had a K&N years ago on a 2002 Silverado and it served me well without issues. I seem to remember reading on here from someone that they suspected the K&N would require tuning where the Roto Fab does not. And I do believe the Dyno sheet they advertise is for the 6.2

Colossus · November 18, 2019

Just don't overoil the filter when you clean it and the K&N will serve you BEAUTIFULLY!!

Theflowmaster · December 10, 2019

I put one on my truck this weekend, and have 400 miles on it since install. I have averaged 19 mpg, which has been mostly highway, per the vehicles info system (which I know can be off at times). The sound is great when you put your foot in to it. I have had other brands of CAI's, but I keep coming back to K&N. Install took about 30-45 minutes, and it does seem more responsive. The rubber grommets hold the lid pretty tight. I didn't feel uncomfortable with it. I have a 19 Denali with the 6.2L. Hope this helps.

Edited December 10, 2019 by Theflowmaster

Defender1 · February 17, 2021

Has anyone had any computer issues with the 63-3109 K&N Kit. I installed one on my 2019 Sierra Denali 6.2 last night (with disconnected battery), took it for a test drive with no problems. Sounded great, all seemed good and ran it for about 20 miles, averaging 55 MPH. This morning, I ran about a mile down the road, about a mile at about 35 MPH, to a garage to wash it. I washed it, pulled it out and parked it. 1/2 hour later, I went to start it, and it just turned over. I tried 3X, but no luck. I disconnected the battery for 20 minutes, and that reset the computer and I got it started. Nothing in the instructions about getting it tuned, or retuned or anything. I bought it for the increased HP and hopefully increased mileage. I tow a motorcycle trailer, and I'm hoping this will help. Any thoughts?