K&N Filter
#1
Instructor
Thread Starter
K&N Filter
Has anyone installed a K&N air filter system? I have a 2015 Z51 and was wondering if it voids the factory warranty. Any problems installing one like having to cut existing lines?
Last edited by xtroms; 02-09-2019 at 03:15 PM.
#2
What’s wrong with OEM?
#3
Melting Slicks
About a Year ago,I tested these 3 filters on my '17 LT1.
White=BMS,Yellow=OE & Red=K&N.
This was NOT a dyno test,but rather a real world test of everyday driving.I ran the BMS & KN both about 500 miles each and based on my SOTP feeling,I chose the BMS.It's a dry media so that is a plus.
I don't believe a filter change would void your engine warranty under normal circumstances.
I have the KN and you can have it.Pick up only in SC.
\db2
White=BMS,Yellow=OE & Red=K&N.
This was NOT a dyno test,but rather a real world test of everyday driving.I ran the BMS & KN both about 500 miles each and based on my SOTP feeling,I chose the BMS.It's a dry media so that is a plus.
I don't believe a filter change would void your engine warranty under normal circumstances.
I have the KN and you can have it.Pick up only in SC.
\db2
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Jpiatchek (02-11-2019)
#7
Le Mans Master
I went with Attack Blue with good results. Dry media and larger than OEM. There are many options...
#8
Melting Slicks
Member Since: Mar 2006
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Haven't seen any credible independent test data where an aftermarket air filter improved anything for the C7, except for the manufacturer's/seller's income.
I would be interested if anyone has any independent test data that proves otherwise.
I would be interested if anyone has any independent test data that proves otherwise.
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Evan Sanza (01-25-2023)
#9
This may be true on the LT1. However guys are making a bit more boost on LT4 cars. That does translate to more power. But GM cheaped out and used the same filter and TB for both.
#10
Burning Brakes
I've used K&N I a half dozen different cars - American , Japanese and german.
I can't tell you that there has been any performance benefit
K&N claim a few hp - I believe a few = no more than three to five.
But could also be "0".
There's no downside, they last longer; easy to clean and re-oil.
For sure they don't void any warranty.
My vette has had one in for about 6,000 miles. or 18 months.
I just removed, cleaned and replaced it - it was dirty.
I can't tell you that there has been any performance benefit
K&N claim a few hp - I believe a few = no more than three to five.
But could also be "0".
There's no downside, they last longer; easy to clean and re-oil.
For sure they don't void any warranty.
My vette has had one in for about 6,000 miles. or 18 months.
I just removed, cleaned and replaced it - it was dirty.
#11
Race Director
There is a downside, these types of filters allow more dirt into your engine.
Last edited by Patman; 02-10-2019 at 06:41 PM.
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Evan Sanza (01-25-2023)
#13
Race Director
#14
Burning Brakes
Filtering Efficiency:
Filtering efficiency is a measure of the filter’s overall ability to capture dirt.
Accumulative Gain:
“Accumulative Gain” is the total amount of dirt that passed through the filter during the test.
#15
Racer
The other problem is that the oil in the air filter will contaminate your MAF. It will happen gradually and you might not even notice the performance loss.
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Patman (02-11-2019)