The91kwbeast
Active Member
- Joined
- Jun 12, 2022
- Messages
- 164
- Reaction score
- 89
- Points
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- Age
- 36
- Location
- Sydney
- Members Ride
- VF Calais V
Yes many other makes seem to work that way, and have stupidly loud bi modals exhausts.BMW M cars with bimodal exhausts are ridiculously loud with the valves open. In Sports+ mode, the valves are permanently open on most and drone like crazy. My wife has an X3 M40i SUV, a 3 litre 6 cylinder turbo and I remember on start up in the show room when collecting the car, it sounded like the exhaust had fallen off the turbo. These are stupidly loud on initial start up to the extent that you'd wake the neighbours starting it up in the middle of the night. Although they're quiet with the valves closed, it's a wonder how they comply when a flick of a switch unleashes a noise level that certainly wouldn't meet noise compliance.
Mustang GT, i30N, anything AMG.. I actually thought the act of having a bi modals exhaust is what makes it pass as there is an OEM quiet mode?