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Its a BS service, do not do it.
M3 engine is port injected, port injected engines do not have that much carbon build up especially at this miles.
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2019 M2 Competition- October 2, 2018 ED
2011 BMW M3 Sedan Alpine White
Picked up via ED 9/27/2011 & Redelivered 11/23/2011 **SOLD**
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