Was having a discussion earlier today on the importance of a catch can in turbo cars and how much oil, carbon, sludge actually finds its way into the intake and reenters the engine. I know a lot of people that mod their 335i and 135i do use these, but haven't ran into many people that engine mod their 535i. I was curious if anyone happens to use a catch can on their 535i, if so what brand. I'm looking to buy one very soon and just want to make sure that the type I buy will fit.

 

Im also doing some thinking along thoose lines, im hoping that a generic one should do the trick along with some pipes and tubes

 

I bought a BSH oil catch can for my 535xi. I plan on installing it this week. It looks like it has to be custom fitted though, gotta make a bracket, not that hard.

 

I was reading up on vent to atmosphere catch cans also, another option I might be looking into. Wish more people on this forum were into engine mods lol