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I Recently Installed A 4" Turbo Back Corsa Exhaust System And Threw A Code, "egr Insufficient Flow". I Did A Lot Of Research And Found That If I Install The Egr Blocker And Finger Stick No Code Will Be Thrown. I Would Like To Install A New Gasket On Both Sides Of The Plate. Does Anyone Know Where I Can Purchase The Gasket??? Thanks
 

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The Dealership will have them. The instructions I got with my blocker plate said to position the current gasket behind the blocker plate ( firewall side ) and you should not need a second gasket.
 

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The gasket is available at the dealer. PN is 97372002. IIRC, it was about $8. (This is the PN for the 2006 LLY and LBZs only)

IMHO, you really don't need the second gasket. Very, very few people have sealing issues that cannot be corrected with a bit more tightening, and in the worst cases a bit of high-temp form-a-gasket.
 
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