This is probably the most extensive thread on the topic of this mod
https://teslamotorsclub.com/tmc/threads/reducing-noise-and-keeping-the-door-sills-clean.141218
Looks like someone bought bulk and cut them to length, repacked and marked the price up a bit (nothing wrong with that).
I bought the RPM Tesla wind noise gasket (more to prevent ice from freezing in that channel than for noise).
I also bought the "original" Z and P strips. I only installed the Z so far.
I'm concerned the P stuff (which compresses when door shuts) will make the doors harder to shut.
There was one comment in one of the threads that said it most certainly makes the rear doors harder to shut.
It's VERY hard to measure.
I'm concerned with how long the Z strips will stay put, because there "sealing action" is to "lift" the gasket away from what it's stuck to.
The P strips "sealing action is to "compress" towards what it's stuck to and will probably stay put, but you will feel that extra compression if it's installed right.
I have a hunch, that if this "mod" does indeed help on noise (great Video shows it does at high speeds) that the Vertical Z strips on front and back of drivers door would be the most critical (because those two gaps are closest to your ears). All the "P" strips go on the bottom of the doors or way back at the rear edge of the rear door.
That's why I did just the Z strips. Most bang for the buck and no negatives (other than they might not stay put).
Regarding this kit, I wish it showed what style of gaskets they use and if it's genuine 3M tape.
