I just about got this kdx 200 dirt bike ready to ride waiting on jet needle,uni filter,and the pro circuit silencer I just ordered.my question is what are your opinions of the pro circuit stuff?quality product?good sound?I. Heard a rattle in my dyno port silencer took it apart and its all ragged out.pipe was bent where it had been laid down a time or two.so I ordered this.suprisingly it was the pro circuit or fmf were the only two I found on ebay.