I'm planning on getting a auto supra and getting a sp67 with the sp400 auto system. I wasn't gonna get the lock up for the sp400 but i was gonna get the 6 speed lsd. I was also gonna of course get a good transmission cooling fan. Do you think i'll have any problems driving this car daily with that setup for my transmission? also how much does the 6 speed lsd cost if you happen to know. My other choice is getting a 6 speed with some really good clutch like the carbon carbon but i know trying to launch those things is a bitch and all and autos have so many benefits.