a friend of mine has a tomei 2 way and that thing kicks hard just daily driving it first through 5 gear you feel it lock up hard core kinda feels like he dumps the clutch everytime but he doesnt..i have a hicas vlsd witch feels the same as a stock open diff while driving but when you want it to kick in add gas you can feel it pretty nice but nothing like the tomei 2 way, and the vlsd you can feel in the turns way better than open diff,and it has the same gear ratio as the stock s13 rear diff