I put the four inch on this weekend and got the drone. I was wondering if someone put there four inch on with the muffler, and then it fell off ;D If someone has a 4&quot; muffler or knows how to stop the drone. Let me know I have one muffler on there I picked up a Fleetpride, but may need to go back and get another. Let me know thanks Don<br>

 

Don,<br><br>Is your muffler all the way back, just in front of the tailpipe?<br>The first time I put on my FlowMaster, I had the same problem, but moving it farther to the rear took care of it.<br><br>If that doesn't do it, then you may have to put a glasspack or other straight through muffler on as a resonator. About like the later models. BTW, FlowMaster makes a special tuned-chamber resonator just for this purpose. It's built similar to the rest of their mufflers, but shorter.<br><br>Vin