got rid of cats bout 6 months ago.the car is very queit on the inside because all the sound is goin out back. everybody I talk 2 says it sounds like a formula 1 car when I start 2 tac abuot 6.5k and up. then it becomes head-turnig loud, not roar but the zippy type hi rev noise. can't exactly describe the sound but the thing like f'in zips! I only heard it once when my wife tried-tried to drive it. she tac ed out first til it hit the fuel cut @ 8.5k (could b part my fault cuz i just dumped 10k in performance pts!)anyway as for drone: non existant(spell ck please) like i say i have to ask people how it sounds cause i cant hear it. Good Luck
PS I have absolutly no regrets and i may even start modifying exhausts 4 others
Last edited by paul mertens; 10-04-2012 at 01:10 AM.