exhaust cutouts, worth it?

I can't speak from experience, but I have a general idea:

A: I can see cut outs give a marginal gain in HP, at full throttle. Maybe the same difference as manifolds vs headers. 10-20 HP.
B: They make you feel like a big man when you un-cork them and make it scream. Cool factor.
C: I don't see how they would restrict flow as they aren't in line with the flow of exhaust.

Is it something that you would go out of your way to do? Meh. That depends on your goals, the only place you could get the full effect, and not be looking over your shoulder, would be at the drag strip, at full throttle. Because, You and I both know gas engines like a little back pressure in everyday driving. :D

They way I see it is, If you put good thru-put mufflers on, and a H or X pipe that would possibly negate any performance gains you would get from a cork. On the other hand, it has a certain cool factor, 007 hidden button type effect...

Again, I could be wrong, and that button could be routed to a 150 shot of NOS in the trunk for some real fun...

:burnout:

Hope this helps.