2004 Pontiac GTO Long-Tube Header Installation - Easy Breather
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Loosen both 7mm PCM retaining bolts and gently remove the connector. Since we have a ProCharger, we also took off the 12mm vacuum-booster PCM bracket nut to free the PCM. On a stock GTO, you only have to remove the plastic tray the PCM resides in. View Related Article
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