Anyone have Warlock Mufflers? Are they boomy?

I've got warlocks... Whatcha mean are they boomy? They basically sound like open headers when they're open, or a quieter version of the same sound when they're capped...

They're for sale if you're looking for a set. They'll bolt up to any Mustang with a live axle, 79-04
 
Thanks. I think I am going to try the hooker turbos. I have a different goal than most guys here. I want cool sounding power with no drone in the cabin. I am determined to do this without going back to the stock H pipe. I have high flow cats right now and the flows are too loud for me. The flows were fine until I did the H/C/I and then it got a lot louder...well in cabin BOOM is what is killiung me not the loudness./.
 
I've got warlocks... Whatcha mean are they boomy? They basically sound like open headers when they're open, or a quieter version of the same sound when they're capped...

They're for sale if you're looking for a set. They'll bolt up to any Mustang with a live axle, 79-04

From the video I saw, your car sounds ALOT like my straight pipes.