This is a new MSD-6AL ignition system that I never used. It comes with all the hardware and rev-limiting plug in chips or you can leave them off and rev 'er up! I opened the bag to use one of the rev-limiting chips in my CSX car but put it back in the bag when I found mine under the seat. I guarantee this unit has never been plugged in to any system ever. I bought it when my current unit wouldn't trigger and it turned out to be the wide gap between the reluctor and the magnetic pickup in the distributor. MSD didn't tell us about that adjustment!! I paid $239.99 plus tax for this system. Buyer to pay shipping to 92673.