it's bullshit, just like grounding kits and fuel catalysts
Probably a capacitor.
The differences quoted are vanishingly small, in the millivolts range. The largest difference quoted would be about 0.03% of battery voltage whilst the engine is running, and I'm being really really overgenerous in the estimation of errors in their favour.
I would take great pleasure in ripping one apart and pulling their claims to shreds if anyone happens to have one
Originally Posted by nene
Pete Shrimp has one
complete waffle
I get tons of good feedback for my grounding kits all the time Danny, from people who have fitted them, please don't put them in the same bracket as fuel cats and charging stabilisers