Rear laterial mayham.

I've done some research on them and they simply don't work. The US government has shut them down a bunch of times basically as false advertising.
It's right in the fine print that they don't protect bare metal... Only painted metal... Painted metal doesn't rust !!
If you get a stone chip and rust starts, they won't cover it.

The problem is that it is based on real science so a new company pops up and and introduces some new electronic wizardry and claims it works.

" ...New car salespeople are not corrosion specialists. Corrosion research has found that cathodic protection can slow rust… but on boats, NOT CARS. That’s why corrosion experts say “Buyer Beware”! For electronic rust proofing to work, you need a completed circuit of protective electrons. In ships, the seawater completes the circuit. On bridges, the wet soil completes the circuit. On cars, the circuit is incomplete. “The only way to complete the circuit on all metal in your car is to drive into seawater or to be buried in soil!” (Corrosion-doctors.org). That’s why cathodic protection isn’t proven to work for cars..."

Krown sent repeated requests to the makers of these devices asking for a workable test for their device because they always failed the test that they give their product.
The companies have never responded.

Your friend probably has a new truck and new vehicles almost always last the length of the paint warranty.
Even our car did.. Then,.. Right on cue,.. Two months after the warranty expired, they rusted through.
 
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Makes sense. I never tried or looked into them to be honest, just heard word of mouth type stuff. Luckily there's no issues with rust here :)

That pot on the stove looks delicious though. Think my wife would probably murder me if I tried to pull something like that lol
 
That pot on the stove looks delicious though.

Haha I was thinking the same thing lol I want to clean the spoon !

So I have now dropped the sub frame from the other car. Wow so easy compared, at some point in time the owner did an under coating ala PCBs stove top brew. The bolts turned out with zero corrosion !?!? Both my grinders died though and I need to slice n dice endlinks. So shopping happens next.
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Good luck with it all.. And keep us updated.
So he drove out with a Shiney ( new to him ) sub frame and lateral assembly thanks to my parts car. Sort of upsold him struts, I installed tokico blues on Megan lowering springs. When he is back we are putting whites on the front also on Megans.

Had zero issues removing his, was panicked for nothing. Could have been horrid, was six easy bolts. Lol. Go figure.

Oh and my new best friend is "deep creep" from the makers of seafoam. That is the best penetrating oil I have worked with.
 
And a better solution arrived for my p5 today ( saddly shipped as three seperate packages ) so still waiting on trailing arms and rear front laterals.
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