Difference between stock and prodrive midpipe (WRX GD)
 

I am wondering what is the main difference between the stock midpipe and the prodrive version? Of cource apart from the look. Does it affect sound, backpressure, or anything else? Is it worth swapping from stock to prodrive?

It's non resonated my little bro has the ppp wrx although having the heat shields there is no resonates there straight pipe