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      03-13-2020, 06:28 AM   #1
New Member

Drives: BMW 435i 2015
Join Date: May 2019
Location: Sweden

iTrader: (0)

Open exhaust flap during cold start on 435i?

Hey guys, I've got a F36 435i 2015, with a supersprint exhaust, and a wagner tuning catless downpipe (which sounds amazing!).
When I bought the car it had Jb4 but I changed this to MHD cause it fitted my needs better. Although the only "issue" i have with this is I can not manually choose when to have my exhaust flap open, except in WOT Comfort/Sport mode. With the JB4 I could open it through the BC button at any time.

So... I wonder if there is some way to manually open the exhaust flap on cold start.