I'm not sure how quiet the stock system is, but what sort of system are you looking for? A feature of Harley owners is that many of them really want to waken the dead, rather than slip by without disturbing anyone!
Probably Harley’s SE street cannon slipons would fit that criteria but I would just drill a 1/2” hole in the baffle plug. If you still want a bit louder go to 3/4”. It will give a bit more growl without being too loud.
hey looking for an exhaust, slip on or full that is under 90 decibels at idle for my iron 883. thanks in advance!
Vance & Hines has a 2 into 1 Upsweep that is supposedly on the quieter side. I considered them but found out they fit only with mid controls and I have forward controls.
these are not even close meter reads beyond Dbs. But it is what it is. There very throaty but not obnoxious I've been told neighbors even like them and I live in large mostly retired area. Good luck. Wild Bill