I want to upgrade and need some help

[yamaha tw200]

I just recently bought a '94 Yamaha tw200 but it was well taken care of and the inside of the engine is spotless. N-E way i want to put a cheap exhaust kit on it that sounds real good. Do you know if a slip on would work for that kind of bike or do you have any makes or models of exhaust pipes that might work on my bike.