ok i have seen ground wire kits but does it help? well i went out and added like 4 more ground wires all over and i dont know if it is just me but it feels more torqee and better when i get on it, if anyone has this let me know if u felt a diff. and if u have pics post them. thanks

 

Its just you. They can't add HP. What you might notice is that your headlights look brighter, perhaps your stereo might sound a little better, interior lights a tad brighter. Stuff like that.

 

not really true, if you add the right kind of wire to the right parts of the motor, it would help it out, if you have aftermarket parts, (ie, ignition, swap, or even just spark plug wires). The Stock grounds were designed to work with a Stock motor with no mods. Adding a wire to the distirbutor could infact give it a better ground making the spark alittle hotter resulting in some HP gain. Same applies if you have a swap, you put a motor in a car the it didn't come with. So adding more ground wires to it would help alittle when VTEC hits.
In theory it should make i differnce. How big of a difference i don't know but I don't think i would break down and buy those expensive ground kits, when i could get the wire and connectors much cheaper.
Try running with just one ground wire and see what happens. Chances are you engine won't rev as high, or the trany won't shift if its auto. Heck it might not even start. So those wires do, do something. Adding more can't hurt it IMO they can only help.

 

Ive seen ground wire kits add 5-15hp on the dyno,no bs they work but you might have to try different grounding points on the car to get the most out of them.

 

ok kool yea i have a b16 and i hooked up like to more to the valve cover and one to the vtec solinoid