Just put a remote electric 3" cutout in the last 12" section of piping before muffler, total investment less than $350 including professional install.
Using a cutout gives you the best of both worlds, you can either bypass the muffler with cutout open (deep growl with turbo whistling) OR with cutout closed, your car still retains stock muffler system.
Really blows my mind how much moolah peeps drop on exhaust systems and if you install a system without a muffler, you're stuck with LOUD 24/7
