You could try these Yeti

http://www.ebay.co.uk/itm/251126309638?ssPageName=STRK:...1438.l2649
I've got some and I'm very pleased with them

The twin lamps on the little CBR were by no means poor

But I have definitely noticed an improvement

The price isn't exhorbitant either for a pair
I had to buy some adaptors to fit the Honda lamps which added to the cost

( thanks Mr Honda

)
But if your bike will take std H4 bulbs you would notice the difference