I do it all the time...................I'm still under that umbrella of a 3 year 36000 warranty though. (as long as they dont check my computer. if they do, the warranty is long gone lol)
I do it when I feel like it, which is often, mostly when Im showing off my exhaust. Although, I think its a bad idea.
2011 Yellow Blaze GT Premium / Boss Intake Manifold/ BBK 85MM Throttle Body / 3.73 gears / BBK ceramic coated Long Tube headers / Catted X pipe / Roush Axle Backs / JLT CAI