INVIDIA R400 Comments ??

Hello everyone, I am looking to get this R400, but I believe this is the latest product from INVIDIA… so I cant find sound clips or comment online.
Anyone knows about this exhaust? TBH, I am not a fan of the boxer engine sound, u may think it is kinda weird to be an 86 owner right? I think this exhaust eliminates that rumble sound and just shout like a normal straight 4. Any good cat back exhaust recommend rather than this???