mahoney1988
Member
Hey everyone I'm new to this forum and I have a 2.3 4cyl Mazda 6. I wanna Start by asking if anyone has upgrade their factory grounding system to an after market grounding system. Every car will have different affects from doing this but i read it never results in a power lose. So if you have done this mod please state to what car and if it resulted in any power gains on a dyno or have just plan noticed more power.