Pro chamber question

[mity2]

Anyone changed from stock H to o/r Prochamber then switched to Catted Prochamber? I'm thinking about doing this, but want to know how much of difference it would make in turm of sound and power

 

[myponyrocks]

I have the catted, dyno numbers are there, but cant tell ya what did what.

Tone is good, I'm sure its a bit quieter than the o/r... I have sound clips from inside, but nothing from the outside yet.

 

[myponyrocks]

http://home.earthlink.net/~robotechmechie/sitebuildercontent/sitebuilderfiles/exhaust.mov

http://home.earthlink.net/~robotechmechie/sitebuildercontent/sitebuilderfiles/exhaust2.mov

These are obviously interior clips, the cats have had one month of break in, and its still getting deeper weekly