With a pro chamber you are paying for a sound. One that you can NOT get with a x or h pipe. For the sound that I got, it was worth every dime![]()
+1
I have some pics that I took of the inside of mine, I will post them up if I can find them.
Who cares what the shape is on the inside!?! It sounds great!


All I know is it was the best sounding midpipe I have ever had on a Mustang.