[vvtlikick]

Toyota offers a factory helical LSD in the top of the line JDM Celica.

Also, the USDM MR-2 Spyder gets a LSD for the 2004 model year, and I believe it fits the Celica.

Among aftermarket LSDs for the Celica tranny, there's Quaife, Kaaz, Cusco (I think), etc.

 

[vvtlikick]

I called Quaife about a year ago, their LSD unit for the Celica has been discontinued....

monkeywrenchracing.com commissioned a run of Quaifes recently, but I don't know if they have any left.