My buddy has one on a pearl white IS250 and you can def see the yellowing.
I think it depends on the color of your car....

 

And the product that was applied

 

Aeson you're from the same area as me, sort of. Who installed your clear bra for you?

 

I had one on the A6 I had before my G37. That one had been on for nearly 8 years with no issues at all. It did a great job of protecting the front of the car.

I had one installed on my G37 also and have been happy with it. Find a good installer with a quality product and I would expect it to last for many years.

 

PremierMobileGroup installed the clearbra on my '06 G35 6MT. When I traded it in earlier this month, the clearbra looked the same when I had it installed. The car sat in baking 90+ degree weather 5 days out of the week. I also took the car on a 3000 mile road trip to Canada, and the clearbra did a really nice job. No issues.

I had premier install a clearbra on my '09 G37. I am hoping for the same experience as with the last clearbra...