r/IMSARacing • u/Penguinho • 2d ago

Future Interest 'IMSA official' has urged Aston Martin/Heart of Racing to drop mufflers for "a more intense shriek" at Sebring

https://racer.com/2024/12/26/is-the-imsa-spec-aston-martin-valkyrie-gtp-about-to-get-louder/
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u/Coolfaceguy77 2d ago

Do they have a reason not to?

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u/pfc_6ixgodconsumer 2d ago

I believe Monza has noise rules due to local residents. They also try to limit the number of annual track running days.