FYI. I just did the swap you plan on doing and.... "Depressed". Lol. They are sooooo quiet compared to the roush. Like not even remotely close in my eyes. But I did the switch due to wanting to go catless also. So time will tell what the end result will be. Good luck and free bump.
Not yet. Just got them installed yesterday. Looking at the lethal o/r x and probably deleting the resonators. Been researching my butt off since hearing them hopefully they need break in time before they fully reach there full sound.
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Also. I switched to the gt500's. I don't know how the outlaws sound. Heard them on a 09 and they sounded pretty good.