Thomas Hanes

I found a great article in the globe and mail (http://www.theglobea.../article535224/) showing how overpriced the erp's are when the dealer sells them. so i decided to check out the krown blog to hear their thoughts on electronic rust proofing (http://www.krown.com/blog/2014/06/electronic-rust-protection/) and came across the list of products recommended by the Automobile Protection Agency - thought I should post it here for folks: http://www.apa.ca/se...ustproofing.asp They give a pretty good run-down on how dealers profit but drivers are overcharged with these devices. They also list some trusted rustproofers from Canada.

Does anyone know about ERPs and warranties? I don't want to get the ERP from the dealer, it's clearly a ripoff, but I'm worried that if I get it done somewhere else it might mean my warranty if voided. Anyone else been through this?