Rust Proofing Electronic Module

[Impreza]

Anyone currently have rust proofing electronic module got installed on their cars ? Just want to get some feedbacks if they really works well ?

Thanks.

[DrXenon]

If your car was immersed in an electrolyte solution 24/7 these things might work. Don't waste your money. Stick to Rust Check/Krown/Canadian Tire.

[Jucius Maximus]

If your car was immersed in an electrolyte solution 24/7 these things might work. Don't waste your money. Stick to Rust Check/Krown/Canadian Tire.

+1, those actually work on boats. They are a waste of money on cars.