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      07-08-2012, 08:40 PM   #17
So Kewl Guy
C|3R1C's Avatar

Drives: 2010 E93 M3 DCT
Join Date: Sep 2011
Location: Los Angeles

iTrader: (3)

Originally Posted by RBB View Post
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.
2010 E93 M3 / MS Catless X-Pipe / AA Catback / Vorsteiner Vented Hood and Bootlid E93 Trunk / ADV1 7.1 Wheels GB / LS3 LED Lights / Harrop Supercharger