Hell, my black car has less mods than you and runs an IC just fine...

-Thrasher CAI w/ 9" K&N
-DUB 3.25" Pulley
-ILGPC Intercooler
-Autolite 104s @ .054
-JimmyC 3" Catless Downpipe
-Overkill PCM

Every thing else stock! Stock rockers, cam, manifolds, LIM, catback, block, trans, S/C, TB, etc etc.

An intercooler (a full size, not an SS) is the single best mod for these cars. As far as i'm concerned, GM should of ICed these cars from the factory.

At any stage, even bone stock, an intercooler will never be a bad mod. Although you won't see much benefits unless your getting a crapload of knock or you raise the boost. You'll always benefit with an IC without a doubt.
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