I loved my muffler delete until I got u up to about 3000 rpm in 6th gear. The drone was intense. I lasted a week or so and bought a Magnaflow muffler and then did a resonator delete.
If you never drive highways/freeways at 72+ mph for more than 60 seconds then you'll probably love it. If you drive high speed for long distances then it may make you nauseous.