AFE or K&N

H2O_Doc · 11-28-2013, 09:27 AM

I got to reading this thread after searching for information on the often debated CAI, SRI, filter gains topics. I also got to reading an old article (with interesting data) on NICO see: K&N Air Filter Review - Debunking the Myths (and why OEM is better) for the original.

Useful data (I think), more empirical than most comparisons, but I'm not sure I agree with the conclusions. So, I'm posting and possibly throwing gasoline on the campfire, but I am interested in what others thinks about the data and conclusions.

To be clear: air filters were being tested, not 370Z performance with various filters. I think this matters (in part), but doesn't change our abilities to draw conclusions; we simply need to consider how the differences in vehicles might affect what we can or cannot conclude. Here are the details:

"SCOPE:
This report presents the results of an ISO 5011 test of several air filters designed for the GM Duramax Diesel. The test was independently performed under controlled conditions using a $285,000 machine at Testand Corp of Rhode Island (manufacturer of the machine)."

Below are some of the relevant data:

11-28-2013, 09:27 AM	#20 (permalink)
H2O_Doc A True Z Fanatic Join Date: Apr 2013 Location: Northern VA Posts: 1,083 Drives: '14 370Z, '12 4Runr Rep Power: 15	I got to reading this thread after searching for information on the often debated CAI, SRI, filter gains topics. I also got to reading an old article (with interesting data) on NICO see: K&N Air Filter Review - Debunking the Myths (and why OEM is better) for the original. Useful data (I think), more empirical than most comparisons, but I'm not sure I agree with the conclusions. So, I'm posting and possibly throwing gasoline on the campfire, but I am interested in what others thinks about the data and conclusions. To be clear: air filters were being tested, not 370Z performance with various filters. I think this matters (in part), but doesn't change our abilities to draw conclusions; we simply need to consider how the differences in vehicles might affect what we can or cannot conclude. Here are the details: "SCOPE: This report presents the results of an ISO 5011 test of several air filters designed for the GM Duramax Diesel. The test was independently performed under controlled conditions using a $285,000 machine at Testand Corp of Rhode Island (manufacturer of the machine)." Below are some of the relevant data: