Thanks Andy, I'd be really interested to see the dyno curves for the bike with the Ramax air filters. Why did you go to them by the way?

I have a hybrid bike, NS400 engine in an RGV250 frame, I'm in the process of trying to fit NSR TA22 carbs as they are bigger bore. The NS400 airbox doesn't fit in the RGV frame so I've had to cut it down. It is now small, and because I'm worried about them being restrictive, I want to fit individual filters...

Cheers, Mat.