I use the Mopar chrome box with a MSD blaster coil. With your set up you do not need to spend a lot of money. I been racing and driving on the street with this set up for eight years now and only had a ballast resistor go bad once. If you want more out of the ECU go to the Rev-n-nator after you have tested your car. I use the Rev-n-nator and it did make difference. I gained .10 to .20 at the track. Only reason I do not use the Rev-n-nator now is because of hard starting problems with the Painless wire harness. Has all the right voltage, but still will not start on when key is turned. The chrome box starts every time.