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Grand National, Turbo T, T-Type, and 89 TTA Lower Plenum To Ported Intake Manifold Gasket - EGR Delete.
When porting your intake the EGR tower is cut out and removed. The hole is welded in at the base for more volume. Your upper plenum should also have the square removed. This is just the simple gasket that takes away
the effort from having to cut the gasket also.
Replaces factory GM part number #24502089
