So a friend of mine told me that my model Camaro came with an LS-6 intake manifold. Is this true of all 02 Z-28 models, how can I find out? Also when I was replacing my water pump on sunday I thought the throttle body looked a little larger that it probable should be, but the stock air cleaner set up fits like a glove and I didn't notice any aftermarket brand name on it, only a parts number sticker, at least that is what it looked like. Anyow would appreciate any help. Thanks guys.