I saw this on tbyrnes website ( Linky ) is this the same as the loudmouth exhaust? If not does anyone have any sound clips?

 

nm...did a search on slps site and found that it is...so now the question, will the loudmouth and the hooker catback provide the same amount of horsepower? I doubt the difference will be too great...if at all, but i would think the loudmouths lack of a true muffler would give it the upperhand?