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Hi all,

Rumor has it that all manual 68 Mustangs have a Thermactor smog system. Should my July built XR7-G 4-speed have the Thermactor?

Thanks,
Fran
 

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the Thermactor smog system was for california cars, my 67 has one and people tell me to just get rid of it to improve the performance, instead i chromed it. i have to make my own filters for it using ac window filters. it makes my car a bit different here on the east coast. do i need the system now? probably not, but what the heck if it helps to clean the air why not keep it.
 

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All 1968 Mustangs and Cougars with manual transmission received thermactor smog, even the 6 cylinder Mustangs.
 

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I drove a 68 Mustang 6 Cylinder with 3-speed Manual for years, it didn't have Smog and never did.. Last one we parted didn't either.
 

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Then it was taken off.
 
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