tried the vortex on my car last week but had to remove much too loud and the boom in the cabin was terrible,will the ninja be a lot quieter and will i still get the boom,i have a de-cat centre on a my00 turbo wagon

 

Ninja is fine on mine (4 dr) Similar to a Magnex but with an awsome WOT scream
I'm sure i've read somewhere that a thick carpet on the boot floor in wagons, helps the boom

 

iv'e never heard the vortex but i have the ninja and its not to loud at all!!! iv'e read with the de-cat its a little louder but i'm sure even that wouldn't be to loud

 

Ive got the ninja witha magnex centre de cat and had fitted yesterday, a magnex twin dump down pipe.
The Doreen drove off in it about half hr ago and the boxer sound is now more prominent and standing at the window i could feel the frame vibrate. Totally different to when your in the car. Very nice, just enough note to remind you of what your driving!!

Johnny

 

i guess it depends on everyones definition of loud........any car will be loud if you decat it and reduce the silencer to a minimum!

 

i think the ninja is designed to be quieter than the vortex.