In my humble option 20 degree drop is very small.

Usually I see more difference at good working catalytic converter, but this difference is - "indirect evidence".

For Example: [2007 Lexus RX350, Emissions Scan Data] , [2012 Toyota Camry SE, Emissions Scan Data] ,

Wladimir Leschchenko
Technician/Technical Writer
Al Tech Page
Odessa, Ukraine

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