These aren't apples to apples videos and I used Howe racing muffler instead of the Chambered, but if you want some exxtra HP, TQ and sound, go with the Howe H3002
1st video- Kind of get a feel for the idle and slight reving with stock 2-18 perf core glass packed mufflers
http://www.youtube.com/watch?v=H09-J...eature=channel
2nd- Idle with the Howe- Get a feel for the idle and "very" slight rev.
http://www.youtube.com/watch?v=U5bhv...e=channel_page
3rd video- Dyno pull- Remember, I am 90 feet away from the car videoing this. The change added 44HP and 47TQ at the rear wheels.
http://www.youtube.com/watch?v=y88fP...e=channel_page