Originally Posted by canbaufo

If it's really quieter than a Powerdyne that is seriously quiet! Mine is pretty much the same way, you barely hear it on the shift (even with a bypass valve) or when putting around at low revs .....and it's always quiet. Give it a little gas and all you hear is exhaust. Don't get me wrong ....I like stealth, but I like the sound of any high rpm device probably a bit more ....perhaps a V1 would be a better upgrade for me (and cheaper).