Do they really work?
I’ve seen alot of the [Nismo/JDM with ground wires] ones on ebay, but will they really help?
And how will they help?
i have one i got it for free thats the only reason why. it looks cool in trunk and i noticed 0 difference at all. waist of money.
i got one i feel no power gain at all. well so small taht i cant feel it
but i seen a dyno on ground wires and it gave the car about 8 more horsepower so if thier is a gain its not really noticable
I just installed a sunauto grounding kit. didnt notice any power gain but idle is smooth as silk.
Try again, and follow forums rules.