I just put it in 2 days ago so I cannot give you a quote about the 60' times, however I noticed a substantial differance in hard braking and traction (take into note I have no rear interior). I could not find a good spot to drill by the spare tire (the fuel tank is right below), even if I had found a spot, 2gauge is a pretty big chuck of metal to take out. Theoreticly you could use the large empty gromet next to the right rear ABS gromet (under where stock sub was). I dont know if I would take the chance of running it below, Im just paranoid like that. Initial start up I had some problems, my optima was not charged, so make sure the rear battery is charged before you put strain on your alternator. If you are not making a sealed/vented box you must use a sealed battery like a optima (for health reasons). Most tracks require a sealed battery box (even if it is optima) and rear switch. (so FYI).