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/
553 Upvotes

99% Upvoted

65 comments sorted by

View all comments

15

u/Coolfaceguy77 2d ago

Do they have a reason not to?

3

u/F1T_13 2d ago

Noise and power restrictions. Developing mufflers for multiple different circuits is expensive, also their engine is significantly more powerful than regulations allow, so using larger silencers, help kill some of the power that they can't get down from using other restriction methods like fuel flow limitations.