I have the LMII on my wifes L99 car and it sounds great. Does not even drone..and the car still has AFM. The LMII is very similar to the Borla Stingers, but slightly cheaper. The LMI has a trashier, less controlled sound.
We have them on sale here-
http://marylandspeed.com/slp-loudmou...12-p-2517.html