Originally Posted by afcgordon
Originally Posted by Danny B
I ran a K&N on my 325I for years with no troubles and it was very quick for basically standard.
Danny did you ever try the original filter?.
yes i had it from completely stock, scrpion exhaust and the K&N took it from mid 16sec 1/4's to a best 15.01@92mph anyone who knows me well will remember my old E30.
