Kreissieg Race Exhaust.... legal?

[Dupont666]

found these on you tube:

http://uk.youtube.com/watch?v=RM7LlTAXrvE

http://uk.youtube.com/watch?v=NPiWiAasyeo

are these completely legal?

Sound good but not sure if you are allowed to have the valve open all the time.

[Dupont666]

Anyone?

Or can you get a similar sound from a tubi?

[baptist]

Capristo sounds better in my opinion.

[900ssduke]

The Kreissieg does sound beautiful, but is about 3 times the price of a Capristo. i love the sound of my Capristo.