Installed the K&N. No butt dyno difference, but overall acceleration feels smoother and there's a tad bit intake noise i can hear at WOT.
K&N if it's available. Million mile warranty, and never need to purchase another filter... ever. All you have to do is every few months take it out and clean it, then spray with the recharging oil and reinstall. I've had one on every single vehicle I've ever owned. The HP and MPG gains are smaller than advertised, but still noticeable.
Neuspeed wires Bosh plugs K&n
Engine Info: -K&N air filter.
Out of an independent test the K&N filter earned 2nd in the least amount of particulates, with the stock filter material containing 498 particulates vs. 501 for the K&N.
I purchased a K&N air filter and cleaning kit for $50 shipped. This alone will last the life of the vehicle.
I have run K&N's on all my cars as far back as I can remember. I'm waiting for spring when I can do a baseline comparision of HP before and after the K&N install with my GTECH Pro competition before I do the installation.
I ordered two of the K&N filters for my V8 T-Reg (hey, anything to improve mileage). I've installed these things on my previous car before and it was pretty cake.
The K&N out of the box messed up the MAF on my old 2.5l Jetta, but 2.5l's are notorious for having a delicate MAF with an aftermarket intake.
K&N filters let in too much dirt when they get older & after a few washes following instructions you can see right through them. Then when oiled, dust plugs them up very fast. When over oiled, the oil can destroy the MAF. All in all not worth the $60 for a panel.
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