View Full Version : Would K&N from '95 540i fit the '99 model??

03-18-2005, 05:58 PM
I know it's a different part#, but the filter fits perfectly.
I know '95s are 4.0L and '99s are 4.4L, does that make a difference?

03-19-2005, 01:58 AM
if it fits i dont really see a problem, but to be sure maybe shoot an email to k&n to get exact specs on both filters and compare....

03-20-2005, 04:55 PM
width & length are the same.
height is different (.5" or so)...

would that make any diff???

03-21-2005, 01:18 AM
the .5" difference u are speaking of, is it the actual filter element or the frame/carrier of the filter? well come to think about it i dont think it should make a difference as long as it fits in and seals properly.... also maybe take it for a few runs to see u notice a difference....

03-21-2005, 09:53 AM
it's the actual filter part that's half inch smaller in height, frame fits perfectly (same dimensions)...
i took it for a run for the day, it seems like it hesitates for a split second when you first step on it, but it definitely pulls a little better...
not sure if i want to take any chances with it though, even though i got it brand new for $40.

03-21-2005, 07:45 PM
damn nice buy, yeah the $40 might not be worth the price of your engine...