Is there a K&N filter for the E70 X5 4.8?
 

I've always had K&N air filters on my Porsches.

Is there a K&N filter for the 2007 X5 4.8?

I'm sure they will make one, though it is utterly useless and provides nearly no gain in either MPG or HP :)

:iagree: ...

Why would one want one?
BR,mD

They let too much dirt in and can take out your mass air flow sensor. I would just stick with the factory filter.

Craig

Yes, a K&N doesn't improve performance, costs more, takes more maintenance, doesn't filter the air as well, and can mess-up the MAF with oil residue.

Very few stock engines Today are limited by air intake resrictions due to the air filter. As a result, a lower-restriction filter will do nothing unless you also open up the exhaust with a less restrictive exhaust system.

I'd have to agree with everyone here. There are just too many problems that can arise with the K&N to offset the benefits of a few hp.

I'm keeping it stock. At least until any mods prove to provide substatial power to the 4.8.