no EGR on a later model, interesting. Dealing with valve seat issues, so I have to change the intake, mainly since 3 other cylinders have piston damage there is most likely more in the intake. Guess I need to research more. I am in Illinois so they wont test a vehicle if the check engine light is on so if it will throw a code I will need to figure something else out. The later plenums are at a 90 degree angle.