I am planning on installing an Attack Blue Air Filter in my MY23 Stingray Z51 this week. Has anyone who has installed one noticed any changes to your C8 in sound, performance, throttle response, etc?

 

Just trying to be truthful.......I once had the attack blue filter in my htc c8. I really did not noticed anything different regarding performance and sound just maybe a little. But once you install the combo.....ported intake manifold, 87mm ported throttle body and that attack blue filter there seems to be a mild difference in performance. But if you really want to hear a little sucking of air and performance get the Halltech Cold Air Intake. Having said that I could have saved $130 and just put it towards the Halltech .

 

I had one... Then quickly upgraded to a full aFe intake system; the factory airbox leaves a lot to be desired.

Drop-in filters are worth about 5-6whp on the C8.

 

I did everything you mentioned above (Halltech, AHR headers, ported intake and throttle body) to have 17 rwhp/17 rwtq. For $5k

Save your money!!! You won't notice a thing.

 

Yeah, but we have went to the track and found progress in performance on those mods. And with a tune probably won't be that much better. That's one reason why I stay away from dynos.....just a measuring tool. Your numbers probably sound about right but you will never know the real deal until you take it to the track. My friend has the exact mods minus the headers and was always 2 to 3 tenths quicker and 2 mph faster than me through the 1/4 mile while my car was bone stock. But having said that, those dyno numbers that you have presented are fine as far as I am concerned. The fastest NA C8s as of today have the same bolt-ons.

 

I raced my buddy a couple of times in his stock 22' C8. Dead tie all the way up there. We could have had a conversation, so I think I pissed away some money. Oh well. 3X with a roll at various speeds and the same result (TIED).

 

Lol......take your buddy to the drag strip and see what happens. Unfortunately I guess mods don't work for everybody if that's your case. But our numbers at the track are not construed especially when we look at the trap speeds which indicates additional horsepower.

 

WHPLASH, did you race your buddy when your car was stock? Some cars are quicker/faster than other similar cars from the factory. That's why it's good to fact-check your mods at the track, if you are able. I have the same mods and was disappointed for a while until recently. My car went 10.80s with these mods in good air. I know my car in stock form would not run 10.80s nor trap over 125mph in the 1/4 mile. Sorry to get off topic OP.

 

No we did not. I put my mods on right at 500 miles. I wish we did, but oh well.

He has a ZO6 now, so I won't be lining up with him too often. lol

 

If it flows more air it flows more particulate matter. I live in dusty Az and have tried the high flow oil types (the blue is dry I know) and I know for certain they allow dirt into the intake. I've experienced that when the paper filters did not allow fine dust into the 4 barrel carb or my 911 air box.
The other issue is the designers use that air filters back pressure to work in the crankcase pressure system...see the discussions on the oil can need/don't need. I found some of the comments pretty solid. YOMV.

 

aFe and AB dry filters both feature 99+% filtering efficiency. Paper filters are nothing more than a cheap disposable solution. Let technology work to your advantage at a minimal increase in cost.

 

I'll look into that as my experience has only been with the older oiled type that did not do so.

An interesting study... it is that 1% that concerns me in a very dusty Az environment.

"Traditional cellulose filter media used for air filtration in vehicle engines are characterized by 99.9% filtration efficiency and accuracy above 2–5 µm. The highest engine component wear is caused by dust grains above 1 µm. Filter media with nanofiber additions provide greater filtration efficiency of dust grains below 5 µm."

Experimental Study of Filtration Materials Used in the Car Air Intake - PMC (nih.gov)

 

aFe recently redid their website and are now sharing quite a bit more data (scroll down for the good stuff): https://afepower.com/air-filter-media


If you want the absolute best in filtration though, then I'd go with the nanofiber AttackBlue. You can get this filter as a drop-in replacement for the factory airbox, or in the Halltech intake system. The downsides to this filter are:

• Higher cost vs. the competition
• Requires cleaning every 10k miles
• Replacement suggested at 50k miles

 

Thanks.... did they mention at what level of particulate matter they were using as a metric? IOW it caught 99.7% of what size etc.... I didn't note that. Cellulose filters catch 99.9% of particulate matter but you may give up some HP but that bit of vacuum also assists in the crankcase evacuation.
I am also wary of non independent testing...the old oil medium filters always did much better when tested by the maker/seller.
Experimental Study of Filtration Materials Used in the Car Air Intake - PMC (nih.gov)
I'd suggest that study above...it is very in depth but this is one of their findings...

"Research shows that filter material characteristics are closely related. Each increase in efficiency and accuracy of intake air filtration reduces engine components wear, but it is related to flow resistance increase in the engine intake system, which reduces its power, and increases need for more frequent filter servicing."

IOW, if you have more air flow you are ingesting more particulate matter...there is no magic way around that.

Now, if you reside in a very wet climate...low dust then perhaps you can reduce the particulate matter intake. If you live in a dry/dusty area like much of the southwest you are getting fine grit into your intake.

On a chevy engine hot rod with a 4 barrel carb It 'consumed' so much dust (popular red oiled filter/factory oiled) that the idle circuit stopped working and it would stall out...the amount of grit was sickening given what had to go down those throats. Went back to conventional paper and they stayed clean.

 

Street dragged a stock Z51 and blew him off with those mods.Each car is different and reacts differently. Sorry for your loss though.

 

It just makes More NOISE !!!

 

Regarding the aFe cold air intake, Paragon did a series of CAI tests on their in-house dyno and found that the pro dry white filter elements made twice the HP/TQ of the blue elements, and better area under the curve. Attached below if you haven't seen it.

Results are just the opposite of aFe's testing.

C8 Corvette Air Intake Shootout! K&N vs aFe Power vs Halltech vs Corsa | Paragon Performance - Bing video

Kraka - wondering your thoughts.

 

My personal dyno testing confirms what Paragon has found during their drop-in and full intake testing. I've tried aFe's oiled & dry filters on both my C7 & C8, among many other previous cars.
*Important note, this is on NA engines, boosted applications are the opposite and respond very favorably to the oiled cotton media.

 

Thanks, just strange aFe has it different.

Here's Paragons dyno test on the attack blue filter if anyone's interested.

 

Is there any data that compares how good their filtration is to each other and to the OEM filter?