^ I already have the Laile front roll center front mount installed for a year now. It seems when I'm at idle, with my air conditioner on, I feel the car 'shake'. I will be installing my Avid side mounts this Thursday. My car has been my daily driver since new and it has 100K on it now. But, I just got another car as my daily, so I can give my IX-MR a 'break'. Once I mount these two Avid side engine mounts, I think I'm done when it comes to these aftermarket mounts. I've heard and read that after having a total of three mounts for a street, occasional track car that by adding the fourth, the transmission mount, the car will be seriously shaking.

 

After driving my 350z for a few months and going back to the Evo, the difference in having all mounts installed is noticeable, but not as extreme as I thought. If you're used to these types of performance cars it will be fine and worth the gains IMO.