If you add this pipe to a stock exhaust, you wont get drone and it probably wont be to loud. . Once you have a full 2.5" or bigger full straight thru exhaust it will get some sort of drone, this is true for any car, I tried adding 4 baffle sections to a 3" on my Evo X to no avail, My wife said it was too loud, lol. I then put the stock back on with a testpipe, hope this helps.