Thread: GIAC 1M Flash - Stock, 91 octane and 100 octane flash with dyno plots!
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      08-22-2012, 06:22 PM   #46
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Quote:
Originally Posted by E30 Racer View Post
Does the GIAC code disable the check engine light from a non-cat downpipe install?
It can be done on a special request and with a written letter that the vehicle is for off highway use only.
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