Thread: BM3 Stage 2 and FMIC?
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      12-20-2018, 02:56 PM   #3
akkando
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Drives: 17 M2 DCT LBB,11 e90 M3 ZCP IB
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Originally Posted by ecitizen View Post
I have a 2018 M2. So I added a fabspeed sport cat and will be doing BM3 soon. A few questions. Do I need a FMIC for BM3 stage 2 or just the downpipe? Or do I have to stick with stage 1 without the FMIC?

Also, if I DIY a FMIC, can it be done without taking off the front bumper?

Thanks!
I'm pretty sure you're supposed to have an FMIC for stage 2 as the stock cooler will just have you heat soak super fast. Might as well do chargepipe too as the stock one has been known to crack with higher boost, or even stock boost. Though most reports of cracking seemed to be on M235.
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