K&N air filter

[Greg72tii]

Is this a worthy addition to my tii ?

http://www.racetep.com/tiikn.html

Thanks

Greg

[Paul7002]

room under the hood and improved weight bias. It has been said by some that the rear of an 02 is pretty stiff and thus the gains from a rear strut brace are negligible. I suppose if you were tracking the car it might be worth it but a marine battery case and tie-down firmly afixed to trunk floor is sufficient and leaves more room for spare parts.

[ColinK]

The general agreement is that the stock filter is the best to the tii.

A K&N or Ramflow may to some look cooler (and is definately louder under WOT) but the stock (helmholtz) airbox is proably the best.

That said, I've not seen a back to back dyno run comparing stock vs. aftermarket that would settle the issue. I'm not taking sides but would love to see a print out. Anybody, Bueller?

fFor me, I've used a K&N and Ramflow. I'm back to stock even though it's harder to change the oil filter as I have to remove at least part of the stock airbox. Just my opinion, but I'd save my money for other things, like driving school.

As always, YMMV

[Das02]

K&N does make a filter that fits inside of the stock tii air housing. With these you get the best of both worlds! I had them on my old tii. Can't remember the part number, but push come to shove, you can get the stock filter dimensions and match it that way.

[Greg72tii]

Thanks guys...I think I'll got with the stock filter.

Greg

[munchytii]

Makes a small noticeable difference in power and noise level. You can hear it sucking up air.

[munchytii]

(nt)to do this K&N set up, you will have to move the battery elsewhere, not unless it's a really small battery. To some folks out there this is not worth the trouble for a small aount of horsepower gain.

[SteveJ]

The E30M3 SIG did a dyno comparison of different airfilters. ITG, K&N, stock paper, no filter, etc... As I recall, the ITG flowed the best, but only by a small margin over the stock paper filter. The disadvantage with the K&N was that while it flowed better when clean, once it was dirtyit flowed less than the paper filter. If you are very good and keep your K&N cleaned and oiled, they work a bit better than stock. Sure, a dirty K&N probably flows better than a dirty paper filter, but swapping out a $10 filter is usually more often done than pulling and washing and drying and oiling a K&N.

I've run K&Ns in all my cars for years. Once I got the tii, I have reverted back to just using the paper filters and trying to change them out more regularly. I just wasn't keeping up with the washing routine.

[rpacifici]

Just installed two K&N "inserts" into the stock tii air filter housing.

I like it!

Nice sound and (to me) smoother accel.

Old (paper) inserts were not to dirty so I attribute the improvement to K&N.

Glad I did it.

[schoir]

There is another option which is the installation of a common triangular filter with a foam element ("Lynx" IIRC), over which a metal grid presses down to hold everything together.  

 

The filter is mounted with a section of appropriate diameter rubber hose (similar to the section of hose used in the K&N filter set up here).  

 

The triangular filter is readily available in most "speed shops" and does not require relocation of the battery.

 

Regards, Maurice.