Personally I have been working with.selling and using Pro-M products for at least 5 years, and have never had an issue with it in any way, I am not trying to start a fight but just because I have not been on Crownvic.net for a long time does not make me a "newbie" I have been in the ford performance business for awhile now, thanks..... I stand by my support of the Pro-M products, been ruinning it in everything from Mustangs to trucks(crownvic included) without an issue...