is it a ls1 or ls6 intake
#3
Use the search button many threads about it. Anyway if the bottom of the intake is flat, or stock 01-02's have them(obviously not your case), and the easiest way to tell is the part number on top of the intake manifold; the part number for it is 12561184 for 2001-2002 f-body ls6, the zo6 is 12573572, and gmpartsdirect is 88894339.
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Use the search button many threads about it. Anyway if the bottom of the intake is flat, or stock 01-02's have them(obviously not your case), and the easiest way to tell is the part number on top of the intake manifold; the part number for it is 12561184 for 2001-2002 f-body ls6, the zo6 is 12573572, and gmpartsdirect is 88894339.
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There are non EGR ls1 intakes though, that is not dead give-a-way. Best option is to look at the floor or bottem side of the intake. Ls1 is more of a tunnel effect which makes room for the coolant vapor tubes, Ls6 is flat.