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      04-11-2018, 12:02 PM   #4
Used2be
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Drives: 2019 F90 M5 DG/Aragon
Join Date: Oct 2012
Location: Michigan, USA

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Quote:
Originally Posted by Rocketsoda View Post
Anyone know what the smell is like for gutted downpipes? Would the double wall help?
I'm sure the stock double walled DPs will smell the same without the cats as the aftermarket catless DPs. I have the gutted stock DPs and there is a definite smell for me when I come to a stop and roll down my driver's side window. That is the only time it's objectionable for me though. If I'm moving at anything above 5 mph I don't notice a smell with the window down. No smell at any time through an open sunroof, stopped or moving.
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