From AMS:

http://www.amsperformance.com/cart/e...kit-evo-x.html

Claims 44% increase in Tq capacity, but then lists max drag tq of 297. I'm confused.

I am looking to have no more than 450WHP for my DD. So 44% increase from the stock 260 ft/lbs Wtq is 374 ft/lbs.

I am only planning on draging about 10 runs a year/ just for mod verifcations.

My goals:

Invisible to dealer (pedal pressure)
moderate slipability (easy to launch)
no chatter.
quiet.
easy on Master clutch cylinder.
Bonus : smaller engagement window with lower engagment point.

Cost is not primary concern, I am also thinking about the exedy twin, but am not sure if it will meet the goals above.

Anyone have this, or driven an X with this?

 

The pictures looks like the OEM clutch. And from what i have heard exedy does supply mitsu with the clutches.
Never heard of anyone using it sorry. And if you want 450 WHP you will most likely go pass the the 374 ft/lbs of torque.