s7 fd are they needed or just a dress-up for you engine bay?

 

FDs come with a small catch can stock.

 

But are they adequate on a modded engine?

 

i would say no. i don't have an oil catch can because i don't feel like spending $100+ dollars. I have both nipples from my oil filler neck vented downwards towards the floor. Eventually i will make my own oil catch can brazed out of copper.