Everybody has different opinions so here's mine...

Borla exhaust sounds great if you drive a bit aggressive. This way you don't hear the drone as long. When you get above 4k rpm's then, from the interior, the exhaust sounds like OEM.

If you drive a bit more casual then the Borla has a very loud drone from 2.5k to 3.5k ish. Hard to ignore as it fills the whole cabin. This is a problem for daily drivers in the city where you hardly go above 3.5k rpms (traffic). I know I paid below $500 after shipping for mine, the link is on this site somewhere. I want to say it is closer to $400.