whats the differance between a pro chamber and a H pipe?

 

The PC uses a box like piece (chamber) to connect the pipes, vs a straight pipe crossover like the h. The difference is obviously sound. In general a PC will be a bit smoother and quieter than a off road x or h pipe....maybe more like a catted mid pipe.

 

thanks..

 

The larger chamber allows for easier cross breathing between sides. The pipes are actually angled like an X, but with a chamber in the middle. The sound is nice and deep, but with a slight decrease in volume as compared to an o/r H or X pipe. The sound level in the car is quite a bit less than an o/r H or X pipe.

I REALLY like the ProChamber better than the other options.