thanks,
I am not that good in DIY as u can see...but now I know how to do this(have to buy more tools though)
btw. the original air filter has a thin layer on it..probably for rough dirt, in case it gets in somehow..I am quite sure this must restrict air intake...should I just take this out with the old filter and simply put in the new K&N filter, or better use it again and put on top of new K&N?
Is there any other way of improving performance(dont want chip tunning as the car has 134000 and turbo has not been changed yet, although it is in very very good condition..2005 330xd 204PS year...i love it..:cool)
Thank u very much for any advice !
