E90 335i N54 Downpipe Question

[Bonez007]

Hi Guys,

I want to install a set of downpipes and midpipes on the car, and I want to know if cat foolers are needed?

The car is stock.


Thanks!

 

[Twinz]

Yes fit the catfoolers...they cheap and will keep the pesky emission errors away.

 

[Bonez007]

Yes fit the catfoolers...they cheap and will keep the pesky emission errors away.

Thank you!