K&N Drop-In Filters

Cmike2780 · 10-22-2012, 10:06 AM

Quote:

Originally Posted by speedracer007

I see them for around $45 bucks each on Amazon. There are a couple of negative reviews from G37 owners. Any 370Z owners with negative experiences?

I've had them for almost 2 years now, no problems as long as you maintain them properly. You're going to find something negative about every product if you look hard enough. The problem with these is that people don't re-oil them properly or damage the filter somehow.

Quote:

Originally Posted by kenny's 370z

i didnt like them.the oem pillows seemed to have more flow on my 09.i finally did a shop vac test where you stick the pipe from a real shop vac to one side of the filter and see how far away you can get, or how closer rather,before it will pick up a piece of card board.oem filters won.car just seemed to run better with the oem filters.thats my experience.i believe the k&n filters block more flow resulting in a slower flow to the maf and therefore making more power.imo of course.

That's not very scientific, and if there is less flow with the K&N, there would be less power. It's proven on the Dyno, not a makeshift shop vac test, which you're not suppose to do by the way since it could damage the filter element.

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