What's the IRR %, normally 90% and above should be good enough

Was just planning to install this brand coming 1-2 weeks..
Lucky I see this post

I see their website, black beauty series $2k+
So expensive still not efficient

Urs was how much?

I think u should go other shop or even the original shop, and ask them verify back the IRR %, sometimes wrongly install
If me, confirm cannot accept spending 2k on shitty stuff.

Happened to my brother car, after install, when measured the IRR was only 60-70%, suppose to be 90%
After complain to customer service, they say install wrong series, redo everything.

V-Kool is costly if installing at authorised installers. However, if buying new cars you may opt for V-Kool package with reduced prices for certain brands, one being Nissan. With the Nissan Almera, V-Kool Elite for whole car costs only RM2.8k, other cars would be around the same price. If installing outside I believe the price will be close to RM4k or higher.

Based on my limited experience, V-Kool has the best heat rejection and durability when compared to all other tints I've installed on my previous cars. However, all those tints are cheaper tints (Huper Optik and others) so the results are expected. Tints with good heat rejection performance are usually more expensive. The Huper Optik tint is pretty good but only for about 3 years before the heat rejection performance drops. By the 7th or 8th year the car feels like there is no tint as it feels like an oven inside the car. The V-Kool Elite feels the same from the first day it was installed on the new car until the 5th year when I sold the car (Nissan Sylphy), no perceived drop in heat rejection performance.

I think it's normal for the leather seats inside a vehicle to deteriorate with time, not only from the sun but wear and tear. Also, the type of leather is a factor too as most are not real leather. It is usually at the sides of the seats where the lines or cracks will appear, or the sides of the backrest. Even normal leather sofas in the living room will show wear and tear. For me, the most important criteria of a tint is to have good heat rejection for the comfort of the driver and passengers, all other considerations are secondary.