Running a B46 with Bootmod3 stage 2 tune since 32k miles. JB4 map 3 from 23-32k miles.
So far no issues, no leaks, and tons of fun. My maintenance practice is much more aggressive though. no more than 5k in between oil changes, and I am always checking oil and coolant for any crossover.
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2017 BMW 330ix MSport Estoril Blue - B46, ER Catless DP, ER Chargepipe, FTP Intake Charge Pipe, BMS Cone Intake, BMS OilCC, Bm3 Stage 2. FI Exhaust, xHP Stage 3 OTS Transmission tune. CSFRace heat exchanger. Performance M Brake kit. AFE Carbon Fiber D.A.S.
https://www.instagram.com/bfourtysick/
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