the borla is still somewhat loud man. i have heard equal amounts of people saying that the borla is the quietest and the hks is the quietest. honestly, it sounds like you have a leak in the exhaust if the car is giving anyone a headache.
to wit:
i have a header, race pipe and 2.25" mazdaspeed exhaust with one muffler. my test-pipe is basically just a resonator. on the highway i can hold a pleasant conversation with no drone at all. at 3k rpm it is just fine. my old tsudo was mega loud, so i know what you're saying, but really it sounds too harsh.
i have no idea why you think it is so loud. there has to be something wrong with the exhaust. also the stock cat creates quite a bit of drone with a cat-back, fyi.
to wit:
i have a header, race pipe and 2.25" mazdaspeed exhaust with one muffler. my test-pipe is basically just a resonator. on the highway i can hold a pleasant conversation with no drone at all. at 3k rpm it is just fine. my old tsudo was mega loud, so i know what you're saying, but really it sounds too harsh.
i have no idea why you think it is so loud. there has to be something wrong with the exhaust. also the stock cat creates quite a bit of drone with a cat-back, fyi.