MAC pro chamber vs MAC H-pipe

[WRXKiller]

what is the difference in hp/tq numbers betweent the two and also the difference in sound. Overall which is better with 2 chamber flows

 

['96&'01Stang]

They are probably the around the same........I would get a Dr. Gas

 

[Craig Mack]

The Dr. Gas will cost twice as much welded up/installed as the MAC pro/H-pipe, which are bolt ons. The Dr. Gas is definately a sweet design for sound/flow, but the welding required and price are major turnoffs and negate the good sides of it, IMO.

 

[Dr. Wu 2000]

i have the MAC h-pipe w/cats and 2 chamber flows and I love the sound.
I think I am going to install the SLP loudmouth just to change things up a
bit. Can't go wrong with the Mac and Flows !!!!!!!!!!!!!!!!!!!