With MEVI, when I have it WOT my lights will dim ect. Do you think this could be hurting my performance? Do I need a bigger alternator?

 

I can't believe no MEVI guys have spoken up yet. Ummm... maybe a beefier alternator, or better wiring running to headlights and such, or maybe even a grounding kit would smooth it out. Or better yet, something I'm not aware of because I'm MEVI-less.

 

do the big 3 first.

 

elaborate on "the big 3"

 

your cars stock electrical system is 4ga wire. upgrade it to 2ga or 0ga. from + alternator to + battery, from -battery to chassis ground, and from alternator casing to ground.