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      12-04-2017, 04:37 PM   #1
mieluise
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Drives: 120i 2017
Join Date: Oct 2017
Location: Mexico

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120i F20 B48 JB4 Map w/o DP any risk?

Hi guys,

I'm new here and reading through some posts I see there's a lot of info on the previous engine but not too much on the new one, at least on what I'm interested in now: can I run JB4 Map 2 without downpipe safely?

I did run for a few days with Map 2 and compared with Map 1 and stock is like heaven and hell, it feels so much more powerful but I read before that in order to use (or at least take advantage of) Map 2 you must at least have an aftermarket downpipe installed which I do not have yet. I really like how my car feels on Map 2 but if there's any risk I won't do it until I get a DP.

So, is there any risk running on Map 2 without a downpipe?

Thanks guys, I hope you can help me and I can help you back in anything I can
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