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#1
11-24-2003, 09:53 PM
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Smog legal mods????????
Hi i was thinking about doing the Free; Ram air mod, EGR tube mod, and the cold air mod on my 98 z28...
i was wondering if there are any smog issues on any or all of these mods... please get back to me... thank you 
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#2
11-25-2003, 09:24 AM
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Re: Smog legal mods????????
The EGR mod may be the only problem here. The computer constantly monitors EGR flow based on the necessary timing retard necessary to control ping. Excessive amounts of retard necessary may affect the computer's ability to control timing, creating a code situation. I believe the other two mods are WOT mods only leaving the stock computer calibrations alone. Ray
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