true flow air filter
 

It sounds like a safe (no oil or possible engine issues) high performance filter using foam. Does anybody have experience with this air filter? Does it change the sound/performance?
I am a bit cautious about cold air intakes and know that porsche designed a very good air intake (big area for air to get in) and all that might be needed to get better performance/sound is a superior filter other than stock paper style and not change the intake

Any thought?

Thanks


Thnaks