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      09-15-2015, 06:20 AM   #5
BimmerGuy25
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Drives: '14 X6M '14 M6 '15 C300
Join Date: Jul 2014
Location: Socal-818

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Quote:
Originally Posted by BRS55 View Post
Does the STG 1 JB4 work with catless downpipes? No CEL?
BMS is actually working on that since the last time I spoke with them. As of now, CEL will come on even with the JB on the car.
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