I just installed a grounding kit by GroundFusion. Thier site says they are for Lancer ES but it worked fine on my 03 OZ and Tyler at Groundfusion was very helpful and willing to refund if it didnt fit, but it worked great. I just had to add one grounding point to the passenger side strut tower. All other conections were already there. my car is heavily modified (except turbo) and the kit noticably smoothed out the performance and the throttle response improved a good bit as well. It looks sweet too and can be ordered in several different colors. I highly recomend it for fine tunning of your Lancer. Tyler says he doesnt sell many for the Lancer. I told him he should sell them to RR. He sold me mine for $70 shipped.

2003 White Lancer OZ
AEM CAI
RR TB
RR IM
RR Headers
RR Crank Pulley
RR Fuel rail
Magnaflow high flow CAT and exhaust
RR Piggy
Irridium plugs
Enkie RS-6 wheels
Kumo tires
Blacked out tint
Magnacore wires
Groundfusion grounding kit

 

i'm glad you're happy with it. post pics if you can.

 

Definitaly post some pics of the grounding kit, and your car since you have a nice mod list.

 

I'll post some pics as soon as I get the summer wheels back on.

 

Why is this in Engine Management?
Congrats on your new toy.