which Borla muffler

I just finished removing the Dynomax Super Turbos and replaced them with the Ultra Flows. Car does not sound much louder at idle or cruise just sharper and deeper and way meaner sounding then before. At wide open throttle it is loud. Or if you rev it up it sounds a lot ouder. Car pulls a lot harder after the swap. No drone at cruise. I added flanges to the tail pipes so I can easily remove the exhaust if I ever wanted to.