Five different vehicles were used in the experiment. A 1990 Infiniti M30, a 2000 Cadillac Escalade, a 2001 F-150 Super Crew, a 2001 GMC Yukon, and a 2002 Yukon XL were all used in the test. The test vehicles were driven at 65 mph on the freeway with the windows rolled up and no A/C on. Under these identical parameters we took measure of the decibel readings in different areas of the vehicles.

The test vehicles were then treated with StealthKote We coated the wheel wells of the Escalade and the 01' Yukon,  the wheel wells and trunk of the Infiniti M30 and the doors and undercarriage of the F150 and 02' Yukon.  After the application process was completed the vehicles were run through the same field test as before. The test vehicles were driven at 65 mph on the freeway with the windows rolled up and no A/C on. Under these identical parameters we took measure of the decibel readings in the same areas of the vehicles as before.

At this point the results from before StealthKote application were compared to the results after StealthKote application

Disclaimer

Test Vehicle Used	Before Stealth StealthKote	After Stealth StealthKote	Sound Is Geometric So....	Post-Test Comments
1990 Infiniti M30	101 decibels ...ouch	90 decibels	-11 decibels / 87% overall noise reduction	Stealth StealthKote can even save old cars!
2000 Cadillac Escalade	85 decibels	82 decibels	-3decibels / 50% overall noise reduction	WOW! You thought the Escalade was nice before...
2001 Ford F150 Super Crew	91 decibels	85 decibels	-6 decibels / 76% overall noise reduction	A truck as quiet as an Escalade? Who'd have guessed.
2001 GMC Yukon	88 decibels	84 decibels	-4 decibels / 59% overall noise reduction	Stealth StealthKote is the quickest way to luxury.
2002 GMC Yukon XL	90 decibels	85 decibels	-5 decibels / 68% overall noise reduction	Bigger doesn't mean louder...anymore!

What is a decibel?