This is a GN1Performance "EGR Block Off Plate with an Engraved Turbo and Gn1 logo on it" for a 1986 or 1987 Buick Grand National, T Type, Turbo T, or GNX 3.8 liter turbo V6. Constructed out of billet aluminum.
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EGR Block Off Plate
Thick, heavy duty aluminum block off plate. Cleans up the intake area, reduces unsightly vacuum hoses
