NOS GNX TURBOCHARGER
The 1987 Buick GNX, only 547 were created (not counting GN conversions modified in garages across America). Though there are not many GNXs around at this point, there are even fewer new (unused) GNX turbos around. At this point, you can get yourself a brand new (new, old stock or NOS) GNX turbo, available on eBay - GNX turbo.
