I would say its a little more responsive at high revs on and off the throttle.

Although the biggest difference is with the windows down listening to it.

The bracket has taken some modifying to fit properly.

The biggest single problem nobody has mentioned is that it says k&n upside down. To me this is just not right.

So if i was to do it again - I'd fit a breather system seperate to the air filter as I now have done. Fab up a bit of a bracket which I've basically done. And just buy a round cone filter of your choice. For me a good toss up between k&n and pipercross.