A muffler for the Runoffs?

I run a FF/Kent.



I was just informed by our team that it is advised to set up and run a muffler for Laguna. Seriously? We are coming to the finals, the best drivers and cars and we have to slam a brick in the exhaust?



Can any of the local/regional racers that run LS confirm that a FF would need a muffler?



Thanks in advance for the information.



Bob