This is my 2002 Mustang GT, my daily driver so I have not done to much stuff it it. Kind of want the gas miliage to stay pretty good on it lol. I did cut off 4 of the 6 cats and had 3" duals run all the way back with 2 flow masters. She screems. I also ended up painting the scoop and the spoiler flat black to sorta mach the mach haha. I also installed M3 style mirrors with the turn signals built in as well as halo head lights.