I bought a tomei 7760 with a fresh rebuild and a one year garantee for $1000. 143 miles later the nut comes off the compressor wheel and kills the turbo. The rebuilder won't fix it. I take everything apart and can't find the nut. Put it all back together with a fresh vf48 and the nut shows back up and ruins my vf (must have been in bv line). Installed a used td06-20g. $2700 to install a used td06-20g.