Listen to me, get the LSD. You'll thank me later. Drive in the snow&rain, it will pay to have it. I know your not speed racer, but you will probably mod it or drive it like ass maybe 5 percent of it's life. Like I said you won't know it's there till you need it. GM took a lesson from mopar on this, they didn't put the LSD in there for performance, more like durability issue. The only way to make a high powered fwd trans&axles survive is with a LSD. Like making a turn into traffic and accelerating, Lsd money, open dif spinning inside tire. Trust me it's like me asking you which is better regular cobalt or the ss. Which would you get?? LSD will make the trans&axle live a happy life. GET THE LSD. You will thank me latter.