Well, about two months ago I was on the free way and I stepped on the gas to get a nice rush of speed and it didn't put out the power that it always had. normally, going 60mph, I could step on it and go up to 90 with a few seconds. And i could go from 0-60 pretty fast too. now it gets there but nowhere near as fast as it used to. barely any torque anymore. and now it feels like it kind of skips gears when i step on the gas, or when it changes gears sometimes. i just feel a jut and the car shakes and continues to climb in rpm until it shifts and juts again. also ive been hearing a hissing noise once its gets to about 4k rpm. so no it doesnt just stop or slow down at all, im just not getting the surge of power like i did 3 months ago.

there is 111,000 miles on it. and i got it in January of 2012.

no i have not done a tune up yet. thats actually why i brought it to bumbera. to get it checked out and tuned, then they said i need to get the cat replaced before i do anything else.