Exhaust questions

[Smokin'Gun]

Another thing about that sled im building... I was wondering if anyone here that knows what theyre doing could build me a set of expansion chambers designed to run without silencers for a rotax 399 cc motor. Id send the motor to you so you can do your thing. If you dont know of anyone that can do that for a reasonable price do you know of anyone or maybe someone here could bulid me a set of 2 megaphone exhausts designed to be short loud and come out the side of the hood. If you dont know what they look like Heres what they look like on a sled and heres a crude drawing of one in paint. They dont have to be anything special they just have to be loud and put the exhaust out the side of the hood.