Easiest Mod Ever! Genuine Lexus IS (20 series) Door Weatherstripping

This is seriously the easiest modification I've ever done. All you need is the ability to apply a sticker and that's about it.

In surfing the web, I found several IS/IS-F owners had installed the Lexus (genuine OEM) weatherstripping for the GS.  Interesting, I found that non-Toyota owners were doing this mod too, including this Mazda Atenza Wagon owner. Seems to be a popular, cheap, effective and easy DIY mod.

The claimed benefits being, when closing the doors they sound more substantial, the additional weatherstripping helps to make the car even more quieter, and it prevents rain/water from carwash from accumulating on the B pillars.

Anyway I ordered from an online retailer and waited a few days:

Part numbers 67895-30020 (driver's side), 67896-30020 (passenger side). For RHD anyway.

Hardest part was making sure to apply on a clean and grease free surface. After using some cleaning items, I made sure that the length of the rubber strip matched up:

Making sure it lines up at the bottom.

 Warning, the strip is actually a few mm short. See below, make sure the top of the strip fits properly.

Here are the pull away tabs which reveal the adhesive underneath.

 Pull the lower tab away, revealing the adhesive on the lower half. Start at the bottom of the front edge of the rear door, and then slowly but securely apply the weatherstrip. That's it!

The top side looks like this. There is actually a small tab that needs to either be cut off or pushed behind the existing vertical strip.

As you can see the additional strip make the doors flush, except for a bit at the top

From a distance can barely tell. (And yes, I know the paint needs a professional polish)

Anyway, I then took the car out for a drive to see if I could tell the difference in sound.  Actually it was a 4 hour road trip with the family; I GUESS there is a small difference but likely a placebo effect. The biggest change is definitely how the doors sound when you close them now.  Interestingly, most Lexus owners reported the same thing in the links above; only the non-Lexus owners experienced a clear reduction in noise, telling us how well designed and built these cars are to begin with.  

And I suppose this also explains why the cars didn't come with them either. Oh well. To the next mod!