I am thinking about a 50 or maybe a 75 shot for a little pick me up. My concern is about the 5 speed tranny. If I remember right, about 5-6 months ago, Toyomota had three 5 spds in their shop with bad syncro's. All three cars had N2O. Has anyone heard anything more about them? I would probably go with the 50 shot. Does anyone think I will have problems?