XSeries-forum

Hi

I am thinks of fitting a performance Ramair air filter to my E53 4.4 petrol, has any one done the same, is it worth doing or not.. read a bit about it.. still open to advice please..


Thank you very much

cheers

Andy

I fitted a K&N oil charged filter to my 2002 4.4 (with lpg) in 2007, recharged it once, it seems to do the job ok.

Lez

are we talking about a performance panel filter to replace original or a cone style filter to replace the original box

It fits in original filter casing.

Lez

[quote=dazzasgotav8 post_id=169176 time=1550953622 user_id=6156]
are we talking about a performance panel filter to replace original or a cone style filter to replace the original box
[/quote

A panel foam filter similar to a K & N..

Cheers

Andy

over the years with messing around with filters i have settled for just buying a good quality paper one now, for my x5 i use nothing but mann filters which is what bmw use anyway and always buy them using the mann part number rather than for a specific vehicle as then you avoid the good ole bmw mark up factor ..

Had this fitted for 3 years now,

That looks awesome!! Does it improve the sound too?

It sounds pretty normal in day to day driving, but when you put your foot down everybody knows you have. I have kept the normal pipe that takes the outside air to the standard airbox and it now puts outside air into the area that the CAI draws in.
There’s lots of debate about drawing hotter/cold air in and I monitored air intake temperatures at the AFM before and after conversion. After 20mph the temperatures were the same and below 20mph and idling/traffic jams the temperatures were 2/3 degrees hotter.