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      09-09-2020, 12:50 PM   #49
Kruppa
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Drives: 2023 M5 Comp & 2024 X7
Join Date: Nov 2017
Location: Charleston, SC

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Quote:
Originally Posted by MomoM3 View Post
If I do 15% front drivers/passenger windows and the stock rears are 20%, what tint % would I need in the back to match the fronts' 15%? My options are 30, 35, 40, and 50%
Not an exact science since VLT can vary by roll but let's ignore that. It's just basic multiplication/division. Front stock is ~70% so if you add 15% that is 70%*15% = 10.5%. If the stock rears are 20% then the math is 10.5%/20% = 52.5%. So your closest option would be 50%. Again, keep in mind even if you could get the front and rears to meter the exact same number the fronts will look lighter most of the time due to sunlight coming in the front windshield.
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