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hmm yeah that is a tough one. I have an LCI E90 so I am definitely not the expert on the issue. hopefully it is a reputable seller!
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 Cobb E40 PROtune by Jake@PTF/RR catless DPs/aFe DCI/ETS 5" FMIC/ER CP/Forge DVs/Alpina B3 TCU flash/BMW Perf. Exhaust./BMW Performance Style 313s/M-Tech Rear |