As mentioned above, this is the most quiet 3 inch exhaust you can buy, but opens up at WOT. Looks stock from behind, so the cops wont hassle you either.Going to try something completley different and Damn Loud!
The Kakimoto is pretty quiet. But it gets just loud enough on boost, you can hear exactly when the wastegate opens up. I like it, but the outlet is a little big for my taste.