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      11-28-2019, 08:00 AM   #10
A Need For Speed
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Drives: 2019 M5 Comp Nardo/Aragon
Join Date: Feb 2019
Location: Florida

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Quote:
Originally Posted by A Need For Speed View Post
OK so what is OPF/GPF?

Does this box enable one to remove the 4 cats and remove the CEL without doing a tune?

thx.
So OPF is the EU pollution nanny that quiets our U.S. exhaust pops and bangs by eliminating unburnt fuel, right?
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