eef48 0 Report post Posted January 13, 2008 I brought a piper cross filter to fit my stock filter box for my e46 323 and could't get the bloody thing to fit. I compered it to the original and found it to be 6mm longer. The K&N appeared to be the same so I found one made by Simota which went in with no probs. I was wondering if any one else had struck the same problem? Just out of interest I noticed I gained about another 1.2 KLms to the ltr according to the trip computer. Quote Share this post Link to post Share on other sites
Apex 693 Report post Posted January 13, 2008 Maybe the Euro/American market has a larger air box? Quote Share this post Link to post Share on other sites
