Exhaust X pipe question





On my 02 l have the stock exhaust system. What would be the advantage to adding a corsa x pipe or any other brand.
Corsa says that it would change the sound besides having it flow better.
Is it worth doing it by itself.
Thanks
Alan
In my opinion it flows better than the stock H pipe and has a real deep sound.
To me it make the exhaust note louder.


