Had a full ninja system fitted on fri, wow!! feels so much quicker, and the noise is addictive!! more trips to the petrol station than ever!!

 

Glad to hear your happy with your ninja system i am thinking about changing the back box on mine for a ninja, how loud is it??

 

...i have the Ninja backbox. Looks good and sounds good. Burbles on tick over, rumbles nicely while driving.Turns many heads and sounds like a Scooby should. Had an open neck H&S downpipe fitted and the whole exhaust system sounds even better and a bit louder.
Not loud on motorway driving.
I reckon it sounds quite similar to a Scoobysport system...but looks better if you like the big 5" tail.

 

For the money you cant go wrong, it looks alot more expensive than it is.