Originally Posted by NismoPick (Post 292921)

Things you should consider first:
-The 6speed will have different gear ratios.
-The 6speed will have different bell housing.
-The 6speed will have different size specs which will make fitting a biotch.
-The 6speed will have different output splines, so custom drive shaft needed.

And after all that, unless you daily drive on a rural freeway that has 80mph+ speed limits, you'll never need 6th gear.

But alas, if you have tons of money, and awesome fab skills, get to it! :D