Well, just picked up the C4S with the Function First motor mounts and transmission inserts installed, WOW....it has really stiffened up the car and going around corners the back end feels much more stable and tight.
IMO however, I would not recommend for anyone who wants a "quiet car" because the engine sound does transfer in and there is more vibration as well, but I personally like that feel and sound, I enjoy the growl of it and with the Fisters mod sound is good.

 

That was quick! Pics or vids? I think GoPros should come standard on Pcars.

 

Well I dropped it off last night and the dealer started this morning, 3 hour job. You can't see them when they're installed, and I agree GoPro should be standard.

 

Ah, the dealer installed. I was thinking pics of the install and vids of performance.

 

3hrs

 

Cool, thanks for posting. I'm thinking about going the same route with my 04 C4S.

 

I'm considering doing the motor mounts next on my car (currently at 56k). Glad to hear the positive about this. Seems like your dealer shafted you on the 3 hours part, heard the DIY somewhere around an hour or so.

 

hmm, 3 hours seams like a rip off! I did this in my garage in ca 40 min and that included going to the kitchen after the first one and having a beer


Did they also change the trannymount? Then 3 hours seams a bit more ok....

 

Yes both the engine and transmission mounts were installed.