Sold my 535i a while back and still have this Helene Performance filter. This is a drop in replacement that uses the stock airbox and intake. Used about 2 months. Looks like new..cleaned and ready to ship!

Asking $40 shipped.

 

any noticeable change to noise or hp?

 

With the tune I could hear the turbos a little more, not as much as a DCI but I didn't have the drop off in power when it was hot either. Seemed to spool up faster with this drop in filter but I don't have any dyno numbers or anything to back that up.

I just seemed to breath better and I liked the additional turbo whine.

 

Price dropped $45 shipped

 

$40 shipped.

 

Buyer never paid. Still available.