Raptor Pro

What system airflow is best for a 2004 Yamaha Raptor 350? Pro Design Pro Flow or Modquad system airflow?

I have a 2004 Yamaha Raptor 350 and I want to buy an air filter high performance for my ATV. But I am not sure that one is better or that it would give my bike more performance. So please help me. Thank you.

Hey do the Raptors have a lot of power, as the YFZ and Banshees? im looking for a new Quad and my father is kinda debating weather or not it will make me an ELT banshee