after-market airbox for 300 EXC?

Anyone know if anybody makes an aftermarket airbox for a '99 KTM 300 EXC? The stock airbox is not very water-tight & I'm tired of duct-taping the inside. Thanks....

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"We don't stop riding because we get old....
We get old because we stop riding" -Anon

99 KTM 300 EXC

I've always had problems with this bike in the water. When I look in the airbox I can see daylight through almost all of the mating edges of the airbox. Afer a ride in semi-wet conditions the airbox is always covered with water and mud on the inside. To alleviate the problem I have been taping all of the connecting pieces (where I can see the light come through) with duct tape. I'd prefer a solid airbox that opens at the top like my 91 & 96 had. I also have re-routed the carb breather tubes up under the seat...this seems to have helped some.