Guys have this listed on Ebay if anyones interested :
Turbocharger Fender Dump:
Turbocharger Fender Dump / Turbo Buick / Grand National:eBay Motors (item 230394280054 end time Nov-05-09 11:29:15 PST)
Was used on a 87 Grand National for a short period before changing set-up.
Housing...