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      03-01-2019, 12:44 PM   #35
Twinsturbo
Private First Class
Sweden
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Drives: M2 Competiton AW MT
Join Date: Mar 2011
Location: Sweden

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Had a discussion today with Eisenmann. They do not recommend installing the race rear muffler om an opf car because it will trigger limp mode because less back pressure even with the OPF filters in place.. zaustworx back box delete seems to work fine tho!?