This is so perplexing to me, as I have zero drone, zero vibration. I have normal aftermarket exhaust noise at around 2000rpms, but nothing i would complain about. Stillen was unbearable. Borla is basically a straight thru muffler, so no gases bouncing around inside, but rasp was horrible. Again, my set up may be different and my installation and clearances different. There is nothing remotely close to rubbing anywhere that may cause vibration. Stillen would rattle the change in my console. I can have at least 10 members verify what I am saying ,which makes it odd that Eric's is so pronounced. Eric look for a package this week, which will include simple bolt on adapters that will effectively extend the tips further into the fake tips, and see if the drone is gone, or minimized. Simple 10-15 min install, and can be done from underneath easy enough.
If it is still an issue Eric, and you want to sell it, I would happily purchase the Sport system from you, as I have three customers local who want it
