Thread: Eisenmann vs Dinan vs Other Exhausts
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      07-28-2016, 10:43 AM   #32
onfireX5
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Drives: F90M5,F85X5M
Join Date: Jul 2015
Location: Va

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I drove mine for a week with the valves unplugged and open. FWIW no problems with codes if you want to leave the valve off.
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