996 pipercross air filter ???

[TVRSJW]

ok looking to fit Pipercross air panel filter in stock air box

1) i know prob no power gains
2) heard oil can mess with MAF true /false ?
3) does create induction noise but.....some say it sounds crap when you have performance exhaust system is this the case ?

[SJW996]

thanks , do you have a sport exhaust system ? doing my research and they say just the filter adds nice induction noise but put that with a sport system and it sounds terrible ? just trying to establish if buying a panel performance filter would be a nice upgrade and little more noise or ruin my set up (i have stainless headers sport 200cell cats and mild stainless sport boxes)