So I'm going to be building a b18c GSR to put out at least 350 hp and my questions are, will a stock tranny handle it? Would a type r tranny even handle it? If not any recommendations on a good tranny to get or is it possible to just rebuild the stock transmission to handle the power? Thanks a ton guys.

 

Stock is fine.

 

there are cars with double your hp running a stock trans with no issues. i would not worry about it. lsd however is definitely a good idea