Hi all,
I've heard that because of the particulate filters required in Europe that the sound of these 4 liter engines is muted compared to the 981 counterparts. Is this the same case for the US models? Do they also have this particulate filter installed upon arrival and if so is this something that can be removed?

Thanks.

 

The US cars have a placeholder filter that does muffle the sound, though perhaps not as much as the European version, as it lacks the coating to actually capture particulate matter. The main purpose of the US filter appears to be allowing the reuse of the European muffler design.

Here’s what my North American Spyder sounds like, fully stock with the inert placeholder filter:

 

Thanks. I watched your video and read your comments they were very informative. Sounds like it isn't going to be much of an issue. Cheers, and congrats on your beautiful Spyder!