Sorry how does grounding smoothen things out?

I did the grounding before. Zero noticeable effect. Placebo also don't have.

https://forum.lowyat.net/topic/1495749

LYN got ground cable seller

if your car isn't that old and u never mess with the cabling of the car
u don't have to worry about grounding problem as it is well grounded by the car manufacturer

Can diy la..go buy any zero oxide 4awg cable and a few cable lug and you good..

How many years should i change once?

Agree there will be a better feel especially after replacing old grounding cable.

However, spending RM799 TS posted video grounding cables are madness.

it will not last long when ur car engine adopted to it it will become normal again , also the connection will be oxidized

Cables

This is way good enough, I dont think it requires as much as he said.

If you planning to ground your body ground battery, alternator + to battery, engine ground chasis, a high copper surface 1/0 or 4AWG will be good enough. Im running a parallel 12v and it does help a bit with overall charging, I was dragging my alternator at first because its not for parallel, but at least after thicker grounding, everything charge @ normal rate 14.3v±.

That's how you stay fat, sell snake oil

Last time I install relay switch for the headlights and do grounding at that area. Much better, brighter and won't go dim when engine low rev