Yup, 5-6 RWHP at WOT and above 5000 rpm to redline. You won't feel the difference, but might hear a little more intake sound.

 

Not as received or if you don't clean and reoil properly.

• To reoil properly, have to first use their cleaning solution.
• I also use a water stream not high pressure just a low pressure to remove all dust and dirst. Than left dry, takes overnight.
• Then use their oil only on the raised outer ridge and let it soak into the cotton filter. It's colored so can see where it did and did not cover
• Find the white spots where oil did not spread. If you oiled them properly, they will be there. Put a few drops in the bottom of the corrugated screens that hold the cotton or whatever material is used. The oil will wick to the white area.
• Should not feel oily to the touch. As received, it doesn't.

SIDEBAR
I chuckled with my two C7 dry sumps where GM paid for an oil change at 500 miles ONLY FOR DRY SUMPS. It was NOT for contamination but because silicone from curing engine seals MIGHT cause oil foam as silicone depletes the antifoam additives in the oil. The oil foam from the external dry sump tank could "burp" with the large amount of air. That pumps sucks oil and a lot of air. The air must go into the air intake after the filter where the top hose emptied. In must be burned NOT dumped into the air as it contains some oil mist. That oil foam can collapse and could run down to the air filter, soak it, an drip on the ground. The Mass Air Flow Sensor is between the hose entry and filter. A number of posts reported oil dripping from the air filter on the ground. Most had zero to do with oil foam; it occurred after they had an oil change and Tech overfilled. Never saw anyone mention the dealer changed the Mass Air Flow Sensor!

BTW that MEMO changing oil at 500 miles in dry sumps because of possible oil foam was published 13 months AFTER I got my early 2014 C7 Z51. I checked and had no sign of oil in my intake air inlet tube. In fact when I got my 2017 Grand Sport, I changed my own oil at 500 miles since GM said to do it as I changed my 2014 C7 Z51 engine oil BECAUSE DID NOT TRUST DEALER TECH TO DO IT RIGHT.

 

If you over oil them, you can clean the MAF sensor with CRC electronic parts cleaner. However, both the Attack Blue and AFE Dry do not require oiling. I have the AFE Dry which can be cleaned when dirty. I use water and liquid Dawn soap with a soft bristle brush allowing the water to flow through the pleats from the inside out, let dry overnight. It looked brand new.

 

I continue to be amazed that so many people can be scammed by clever marketing to put an air filter in their car that is an inferior filter to the stock filter as far as "filtering dirt performance" with a promise of a minuscule amount of added power.

"It's easier to fool people than to convince them that they have been fooled."
Mark Twain