Hey Raytsang,
I have not come across M sports aero items, but I can share with you my nightmares when it comes to buying CF bonnets.
The reason I stick to Nissan optional aero parts because of my fear to test poorly fabricated bodykits, especially those made from FRP or fiberglass resins. Many are poorly reproduced from timber molds so the tolerance is way higher than many human's and they end up weighing a ton before your painter slaping a ton of bondo to cosmetically perfect it. And not to mention about cracks after installation.....
I've even had bad experience buying CF bonnets from smaller tunners like Origin. Man...their CF bonnet look really nice in pics but the surface waves more than the Gold Coast's asset when I actually got them and installed. In the end I had to sell it off and finally settled for a Varis CF bonnet.:annoyed:
I think it pays to do your homework before any commitment...unless you do not mind regrets.