That thing was for sale for $5800 bucks, made me want to try and get a little air https://www.facebook.com/share/19af6i9N1U/ .
With a Supertrapp on it. Kerker was the big one I remember seeing on 70s/80s bikes around here, but I do remember Supertrapp also (from my 90s memories).
when I lived in an apartment starting it up would set off a guys alarm about 200 feet away. without even revving it up. I tried to be quiet.
Years ago we would go to a watering hole in Mt Adams , a kinda up scale part of Cinti . . The place was once owned by George Remus . Long up hill streets to get there and exit . Every yuppy car to and from would have the alarm sound in as we blasted past . Kinda funny , lights flashing and horns blaring , coppers raising hell that bikes were too loud . I ask one “ do you not think the car alarms might be as loud as the bikes , goin off ? “ He was not amused by me at all . The license plates from south of the Mason Dixon was a dead give away we did not belong in that part of the city .
I had a '75 900 with a Kerker. Unplugged it was insane (in a good way). Luckily I somehow lived through it....