anybody heard of these stall converters?

are these any good? I'm looking for a stall for my "soon to be" turbocharged 4.8

http://cgi.ebay.com/ebaymotors/ws/eBayISAP...sspagename=WDVW

never heard of em but itll probly do same thing the old Vega stalls did and flatten out after a few runs. i wouldstick with stalls that have prooved their worth if i were you especially if your planning on turboing it. :burnout: