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For those LS1 owners not blessed with the stellar LS6 manifold, there is the EGR mod. The tube that enters on top of the composite manifold hangs down into the air stream, but a quick chop to the EGR tube's manhood will remove this obvious obstruction right after the throttle body.
LS-1 F-Body - Take the Money & Run

For those LS1 owners not blessed with the stellar LS6 manifold, there is the EGR mod. The tube that enters on top of the composite manifold hangs down into the air stream, but a quick chop to the EGR tube's manhood will remove this obvious obstruction right after the throttle body.  View Related Article

 

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