Originally Posted by RBB
Thanks for the tips, man. How do you like the sound of the AA with the HFC's and x pipe? I've got an AA rear that I'm pairing up with a Challenge Sport cats and pipe. Any noticeable drone at cruising speeds? How would you compare the sound to just the rear section? I fully expect it to be very loud and boomy at low RPM's and around town.
I loved my AA HFC/catback! great sounding and nice and loud. Nice tones imo, and no rasp (at least from what I can tell). I changed it to just pure straight pipe and I love it even more. There is less drone in the cabin (except with the windows down) and slightly deeper tone. Better throttle response too. There is definitely a little drone with the HFC, but I love the sound, drone and all.