This is a partial replacement of the Vortech air inlet. The cast aluminum inlet that connects to the supercharger remains the same, but the other pieces of the inlet system are replaced. Our kit consists of a polished aluminum elbow, high quality silicone couplers and a larger K&N filter. This upgrade was installed on a stock 2004 GTO AUTOMATIC with the Vortech supercharger. We found an increase of over 100 rear wheel horsepower initially and an increase of 2 psi of boost. We then upgraded the injectors, fuel pump and added a Kenne Bell boost-a-pump. The end result: The car came to us making 370 RWHP and left making OVER 500 RWHP at 11 psi!!!
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