Hi everyone, new member here. I posted this same question on another forum but its not geared towards cars specifically so I thought I should ask here. I got a new 2013 Mustang GT 5.0 last summer. I love the car. Right away it got new wheels, and Roush mufflers. With just this setup I ran a 13.10 @107MPH on the 1/4 mile ( the car is an auto, i just didnt want a stick for this car ) Since then, the car has: 3:73 gears, upper and lower control arms, BBK cold air intake kit, X-pipe cat converter delete kit and a custom tune from BBR uploaded through my SCT tuner. I would love to know what it'll run now, I will be taking it to the track in 5-6 weeks my question is, and forgive me for such a dumb question, but I have white smoke coming out of the exhaust pipe now. Ive never had a "car" before, always diesel trucks that I straight piped and tuned... never a car. so I was surprised when I noticed all the other cars on the road on a cold day didnt have white smoke coming out, just mine. I am assuming this is simply because I no longer have the catalytic converters in it ? or is the tuner pumping too much gas through it ?