Performance Air Intake for Pontiac Grand Prix GXP (2006-2009) 5.3LMaximize Inductive Airflow for the LS4 V8 in the Pontiac Grand Prix GXP Who Its For: This system is built specifically for the 2006 2009 Pontiac Grand Prix GXP enthusiast looking to extract the full potential of the LS4 engine family. The Problem: The factory induction system on the LS4 V8 is a significant bottleneck. Because this engine is shoehorned into a transverse front wheel drive layout, the stock air box is cramped and uses restrictive plastic
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Performance Air Intake for Pontiac Grand Prix GXP (2006-2009) 5.3L