K&N panel filter in my 1990 316i

[stokiedundee]

Hi my fellow zoners, I bought and replaced my stock panel filter in my 1990 316i manual e30 5 door with a K&N one. Apart from sounding nice, I dont think its gave me much gain in performance. I also think she does'nt warm up very much either since fitting it. So this morning I put the original filter back in and I dont know if it was because it was cold, but it felt little more repsonsive. I know she may need a service shortly and I also know that the 316i is renowned to be quite slow. Any advice whether I should put the the K&N back in? Any advice is much appreciated. Thanks for reading.

Ryan aka Stokiedundee

[Brianmoooore]

Performance wise, there will be absolutely no discernible difference between them at all. The main difference is that just one actually filters the air properly.

[stokiedundee]

So does the K&N air filter not filter the air properly then? So is there no need for me to put it back in?

[hennared323i]

No

BMW paper filter is the most effective filter. K&N may sound better but is less effective at filtering

[stokiedundee]

Cheers mate. I'll just sell it then.