Attack Blue Air Filter
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Jul 9, 2021, 07:44 AM
Safety Car
Joined: Jan 2005
Posts: 4,508
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From: Pittsburgh PA
2025 C8 Stingray of the Year Finalist - Unmodified
2024 C8 of the Year Finalist - Unmodified
Heel & Toe
Joined: Jan 2020
Posts: 19
Likes: 10
From: Reno, NV
Search "Attack Blue" in the C7 Tech Discussions, and you'll find more reviews. I have installed one in my 2014 Z51 and have noticed a little more throttle response, and an increased growl from the engine. I researched it on the web (Corvette YouTube Channels) and the forums. Most have said the gain is not worth it, and to stay with the OEM Filter, some have said they really like and recommend it. This is the first I have heard about drawing dirt in the engine.
Last edited by 1BADRAY; Jul 8, 2021 at 02:20 PM.
Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
According to ASHRAE testing, the Attack Blue filters slightly better than OEM (.3 Micron). Dyno results on the LT1 was a gain of 10 Hp to the wheels. Not sure how that equates to more dirt in the oil.
Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
From a dollar per horsepower perspective, this filter is a pretty good deal. The filter sells for $99. It is reusable and available as oiled or dry. Dyno testing demonstrated a 10 hp increase on an LT1 and 37 hp on an LT4. For the LT1. that's $10/Hp. For comparison, install of a Procharger supercharger is about $40/Hp. Its hard to find cheaper power.
Race Director
Joined: Jun 2005
Posts: 10,909
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From: Phila Suburbs 2023 C8 & 2013 650ix
You will never see a test of the K&N filter by the manufacturer because the results would show that it is an inferior filter when it come to dirt holding capacity as well as filtering fine particles out of the air. Here is the most informative link about filter performance:
K&N Air Filter Review - Debunking the Myths (and why OEM is better) (nicoclub.com)
The stock filter is good for 37,500 miles. How many of those are you ever going to buy?
K&N Air Filter Review - Debunking the Myths (and why OEM is better) (nicoclub.com)
The stock filter is good for 37,500 miles. How many of those are you ever going to buy?
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Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
You will never see a test of the K&N filter by the manufacturer because the results would show that it is an inferior filter when it come to dirt holding capacity as well as filtering fine particles out of the air. Here is the most informative link about filter performance:
K&N Air Filter Review - Debunking the Myths (and why OEM is better) (nicoclub.com)
The stock filter is good for 37,500 miles. How many of those are you ever going to buy?
K&N Air Filter Review - Debunking the Myths (and why OEM is better) (nicoclub.com)
The stock filter is good for 37,500 miles. How many of those are you ever going to buy?
Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
Racer
Joined: Oct 2018
Posts: 256
Likes: 108
From: Texas
You will never see a test of the K&N filter by the manufacturer because the results would show that it is an inferior filter when it come to dirt holding capacity as well as filtering fine particles out of the air. Here is the most informative link about filter performance:
K&N Air Filter Review - Debunking the Myths (and why OEM is better) (nicoclub.com)
The stock filter is good for 37,500 miles. How many of those are you ever going to buy?
K&N Air Filter Review - Debunking the Myths (and why OEM is better) (nicoclub.com)
The stock filter is good for 37,500 miles. How many of those are you ever going to buy?
Last edited by MyDarkAngel; Jul 8, 2021 at 07:00 PM.
Melting Slicks
Joined: Aug 2014
Posts: 2,587
Likes: 873
Using the attack blue filter here. in the last 2 years i owned it, no issues. I did a uao when i got my car and 1 year after the filter and nothing unusual showed up in the year between tests for the analysis.
Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
The description of the AFE filter is very similar to the Attack Blue. They both have the name Pro Dry S. I wonder if they are the same thing or affiliated in some way. They cost the same too.
Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
If these aftermarket filters were so bad for the engine, Chevrolet would void the warranty. I haven't heard of that happening.
Racer
Joined: Oct 2018
Posts: 256
Likes: 108
From: Texas
That's because there is no data. I'm still puzzled about the dirt in the intake air getting into the engine oil. I'm pretty sure any dirt in the intake air is insignificant compared to the carbon and water vapor blowing by the rings during the power stroke. But he's already told me I just don't understand. So I take what Walt White Coupe says with a grain of salt.
If these aftermarket filters were so bad for the engine, Chevrolet would void the warranty. I haven't heard of that happening.
If these aftermarket filters were so bad for the engine, Chevrolet would void the warranty. I haven't heard of that happening.
Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
Race Director
Joined: Jun 2005
Posts: 10,909
Likes: 2,701
From: Phila Suburbs 2023 C8 & 2013 650ix
So I have to admit that I didn't have the info on an Attack Blue filter, it was the K&N. But look at that report and see how well the stock filter performs compared to so many other filters on the market. If they tested the Attack Blue filter I'd bet that the Attack Blue would be about as good as the K&N filter. Call that an educated guess.
I'm sold on the performance of the stock filter and think these high performance filters leave a lot to be desired when it comes to filtration.
I'm sold on the performance of the stock filter and think these high performance filters leave a lot to be desired when it comes to filtration.