Lexx Exhaust Has Anyone In The MOTO SPORT World Heard Of Lexx MXe Slip On Exhaust?

Has anyone in the MOTO SPORT world heard of Lexx MXe slip on exhaust? - lexx exhaust

Looking to buy a new exhaust for my dirt bike (2004 Yamaha YZ250F) However, I have no money to buy the full right and really do not want a complete system. I found the note in MXE Lexx exhsust but I've never heard of this brand. I want to buy, because it is in my price range here, but I want to know more about him. If you have one or knows anything, please let me know. THANK YOU.