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PF-64 is what I have understood to be the correct filter. If any other filter is on the engine and something happens, the warranty will be void. The track prep guideline sheet is GM's step by step resource and has not been altered since it was issued. The owner's manual has been known to have mistakes in it. I ordered the PF-64 from Amazon as my local Autozone or Advance Auto did not stock it. C7 corvette guys went through a similar issue with the owners manual and factory installed filters not having the same part #. I am changing my oil very soon and will confirm what filter is on the car from the factory. It should have a factory installed PF-64 if everything stated is accurate.
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