Quote:
Originally Posted by lonewolfB58
Every car is different for some models (328i) I’ve seen they require: High flow downpipe & FMIC
but
for B58 (340i) I’m only seeing it requires: high flow down pipes
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b48/58 and perhaps b46 as well don't need an FMIC since they use a chargecooler. There are upgrade kits for those but they're not required for stage 2. Perhaps if you're pushing those motors on track, they might be useful but I'm more familiar with the n20 since that's what's in my car. Perhaps one day, I'll be fortunate to have some extra funds to do a b58 swap in my wagon
