It's not going to be any louder than sport mode. Join st all the time.I'll probably get under there and unplug my valve one of these days. It seems simple enough and I love that louder startup exhaust sound.
I wonder if it's as loud as the SE option, or is SE even louder?
Not going to keep startup sound as previously covered. That's a cold start fuel and timing map that won't be replaced by opening exhaust valve.
I will say that at 1500 miles it's definitely louder than new.