I have their 164A (or so; dont remember exactly the amperage), and used their cable from the alternator directly to the battery IN ADDITION to the stock cable. I have abused it frequently (taking it for mud baths, submerging it in water, and using all the electrical gizmos like Ford/Linconln eFan, 4 Aux lights, GPS, CB, 2m radio, charging phone, stereo, and enything else I can think of, and so far, so good. Not a single issue have I had with this alternator in over 3 years that's been in the Jeep...