I have it on my Gen 1. It’s a great feature, love being able to adjust how loud it is. I usually have it closed for startup so I’m not the ass that wakes up the neighbor when I start the truck early. I’ll switch it open to really get the loud rumble when driving. Only other time I have it closed is if the wife is with me BC and wants to do a phone call. Tough to hear the phone with both my v8 and the dump exhaust in use.
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