2015 BMW M4 Coupe (F82) Spied!
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07-29-2012, 09:17 PM
Drives: E92 335i FBO JB4-G5-ISO Meth
Join Date: Jun 2012
Looks like there's 3 mufflers. Perhaps an improved valve control setup?
Glad there's something to look forward to in about 2 years.
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