yeah, I have the SLP loudmouth 2 cat back, the k&n FIPK CI and the un altered 93 octance tune from Diablo. Much appreciation from all your posts and views! I learned how to launch these Supercar tires when I owned an 06 vette they came stock on, but those were runflats and much more unforgiving. Really an excellent tire until about mid range wear, then the hooking up is over and it's smoke show time. Enjoy those first 5K miles, lol. Just thrilled to be back in an SRT and all the family feel from the community!