Hi everyone, i've got the GruppeM installed last week.From the installation instruction sheet, it states that "the filter case has a drain hole, but do not drive in the rain with the inlet air duct fully open." I know most ppl would say it is no problem to drive with the air duct fully open when rainning . But, i'm still a bit worry about it so i have been using the tape to cover 3/4 air duct these days
. (Thx for the recent heavy drops). I am surprised that it doesn't affect the car performance (well at least it's not noticeable to me) so i would suggest u guys who got the GruppeM can do the same way. Just a few sec work to avoid your worry and the problem occurs. Why not?
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. (Thx for the recent heavy drops). I am surprised that it doesn't affect the car performance (well at least it's not noticeable to me) so i would suggest u guys who got the GruppeM can do the same way. Just a few sec work to avoid your worry and the problem occurs. Why not?
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