I have run my Subaru STI uncorked there over 7 times and never got the meatball flag (sound flag) even once. Its about a 75yard section out of turn 5 that you need to be a little light on the foot, but your hitting turn 6 under the bridge and it has quite a dip in it. Going more than 85 through there is a challenge with out bottoming out. It will all work out.
Even if you get flagged you have the opportunity to fix the problem. Up to 3 tries before they kick your loud a$$ off the track.
One of the most famous venues in all of racing. Its worth it!