k i got a 2005 mustang gt with a cold air intake, throttle body spacer, and a Diablo sport tuner. i know some one that will bend pipe for me and i was going to take off my cats. i was wondering if i have to plug the three wires back in? and will i need to decrees the amount of fuel so i don’t run rich? i have heard that with the cats off the car will run rich and i know i can play with the air/fuel mixture with the programmer i have.