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      05-02-2019, 07:47 PM   #7
Whipple
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Drives: 2015 BMW M6 Gran Coupe
Join Date: Jun 2011
Location: New York

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I don’t have a sound clip but if you search YouTube you can easily find one , let me tell you the vids do no justice at all nothing like the real thing, I don’t have JB4 but I think it will just mask the O2 cel light but not delete it , you might fail smog inspection, I know a ECU tune will get rid of the cel light and pass emissions , I have been driving around with the cel light on it’s all good , I cleared it with Carly waiting for it to come back 😁, I usually wear the shirt that says (Yes I Void my factory warranty!)but any exhaust work doesn’t.
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